The Old New Thing

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22.1642 23 21.75C23 21.3358 22.6642 21 22.25 21H15.25Z" fill="white" /> </svg> </button> </div> <script> document.addEventListener('DOMContentLoaded', function () { // Single column layout view toggle const wrappers = document.querySelectorAll('.archive-posts'); const paginate = document.querySelector('.netsposts-paginate .next'); const gridButton = document.getElementById('grid-view-btn'); const columnButton = document.getElementById('column-view-btn'); // Check for stored layout in localStorage let storedLayout = localStorage.getItem('layout') || 'grid-view'; // Default is grid-view // Apply the stored layout wrappers.forEach(wrapper => { wrapper.classList.add(storedLayout); }); updateLatestPostsTracking(storedLayout); // Function to update the layout state in localStorage function updateLayoutState(layout) { localStorage.setItem('layout', layout); // Store layout in localStorage } // function to update data bi attributes to reflect the current layout function updateLatestPostsTracking(layout) { let layoutString = ''; // make layout string compliant with tracking requirements switch (layout) { case 'grid-view': layoutString = 'grid'; break; case 'single-column': layoutString = 'column'; break; } // update data attributes on all cards wrappers.forEach(wrapper => { // get current collection of cards in case new cards have been added let cards = wrapper.getElementsByClassName('netsposts-posttitle-link'); Array.from(cards).forEach(card => { card.setAttribute('data-bi-id','landing_page_latest posts_'+layoutString+'_card'); }) }); if (paginate) { // update data attributes on pagination paginate.setAttribute('data-bi-id', 'landing_page_latest posts_'+layoutString+'_load_more'); } } // Function to check screen size and apply the correct layout (but without removing single-column) function checkScreenSize() { // No need to remove single-column for smaller screens storedLayout = localStorage.getItem('layout'); wrappers.forEach(wrapper => { if (storedLayout === 'single-column') { wrapper.classList.remove('grid-view'); wrapper.classList.add('single-column'); } else { wrapper.classList.remove('single-column'); wrapper.classList.add('grid-view'); } }); // Update button active state based on stored layout if (storedLayout === 'single-column') { columnButton.classList.add('active'); gridButton.classList.remove('active'); } else { gridButton.classList.add('active'); columnButton.classList.remove('active'); } } // Run check on load and window resize checkScreenSize(); window.addEventListener('resize', checkScreenSize); // Set event listener for Grid View button gridButton.addEventListener('click', function () { wrappers.forEach(wrapper => { wrapper.classList.remove('single-column'); wrapper.classList.add('grid-view'); }); // Update active button state gridButton.classList.add('active'); columnButton.classList.remove('active'); updateLayoutState('grid-view'); // Save grid-view in localStorage updateLatestPostsTracking('grid-view'); // update data bi attr }); // Set event listener for Column View button columnButton.addEventListener('click', function () { wrappers.forEach(wrapper => { wrapper.classList.remove('grid-view'); wrapper.classList.add('single-column'); }); // Update active button state columnButton.classList.add('active'); gridButton.classList.remove('active'); updateLayoutState('single-column'); // Save single-column in localStorage updateLatestPostsTracking('single-column'); // update data bi attr }); }); </script> </div> <div class="archive-posts masonry-container gap-24"> <div class="masonry-card box bg-white d-flex justify-content-between flex-column p-16 gap-20 rounded shadow position-relative border-1"> <div class="masonry-thumbnail"> <img class="post-thumbnail wp-image-110434 lazyload" width="1920" height="1080" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGQAAAA4AQMAAAAxYM+bAAAAA1BMVEXW1taWrGEgAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAEElEQVQokWNgGAWjYBTAAAADEAABC3uRhAAAAABJRU5ErkJggg==" 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12.2766V5.56594C2 4.14888 3.16406 3.00012 4.6 3.00012H15.4C16.8359 3.00012 18 4.14888 18 5.56594V12.2766C18 13.6936 16.8359 14.8424 15.4 14.8424H10.81L6.79895 17.8035Z" fill="#0F6CBD" /> </svg> <div class="d-flex align-items-center clr-grey-61"> 0 </div> </div> <div class="d-flex gap-4"> <div class="d-flex align-items-center clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4965 17.3028L16.7408 10.9994C18.4252 9.28856 18.4199 6.52549 16.7239 4.81249C15.0611 3.13292 12.3961 3.0895 10.6978 4.69086C10.6612 4.72539 10.6251 4.76068 10.5894 4.79673L9.99299 5.40026L9.38843 4.78963C9.35529 4.75616 9.32175 4.72333 9.28783 4.69116C7.58595 3.07726 4.91654 3.10193 3.26122 4.7739C1.5729 6.4792 1.58114 9.25004 3.27679 10.9627L9.55368 17.3028C9.81404 17.5657 10.2362 17.5657 10.4965 17.3028ZM11.3 5.50029C12.5964 4.19135 14.7025 4.19204 16.0133 5.51604C17.3253 6.84123 17.3272 8.97734 16.0292 10.2968L16.0282 10.2978L10.0252 16.3577L3.98743 10.2592C2.67408 8.93263 2.67286 6.78953 3.97185 5.47746C5.26525 4.17106 7.36984 4.17208 8.6778 5.49319L9.63801 6.46306C9.8338 6.66082 10.1534 6.66067 10.349 6.46272L11.3 5.50029Z" fill="#242424" /> </svg> </div> <div class="d-flex align-items-center clr-grey-61">1 </div> </div> </div> </div> <h3 class="fs-24 fw-600 mb-16"> <a href="https://devblogs.microsoft.com/oldnewthing/20241122-00/?p=110560" class="single-click excerpt-title" data-bi-id="blog_home_page_latest_posts_card_singleclick" data-bi-name="In C++, how can I make a default parameter be the this pointer of the caller?, revisited"> In C++, how can I make a default parameter be the this pointer of the caller?, revisited </a> </h3> <div class="d-flex gap-6 align-items-center"> <div class="avatar-parent"> <img src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/RaymondChen_5in-150x150.jpg" style="width: 20px; height: 20px;" class="avatar-20 rounded-pill a" alt="Raymond Chen"> </div> <span class="fs-14">Raymond Chen</span> </div> <p class="excerpt-body mt-16 mb-24"> Expanding on the previous pattern. </p> </div> </div> </div><div class="masonry-card box bg-white d-flex justify-content-between flex-column p-16 gap-20 rounded shadow position-relative border-1"> <div class="masonry-thumbnail"> <img class="post-thumbnail wp-image-110434 lazyload" width="1920" height="1080" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGQAAAA4AQMAAAAxYM+bAAAAA1BMVEXW1taWrGEgAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAEElEQVQokWNgGAWjYBTAAAADEAABC3uRhAAAAABJRU5ErkJggg==" data-src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2024/10/banner-oldnewthing-blue-16x9-1.png" alt="How can I detect which menu my item was invoked from?" /> </div> <div class="card-body"> <div class="card-top"> <div class="d-flex align-items-center justify-content-between gap-12 mt-16 mb-16"> <div> Nov 21, 2024 </div> <div class="d-flex gap-12"> <div class="d-flex gap-4 clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4809 13.8424H15.4C16.2962 13.8424 17 13.1289 17 12.2766V5.56594C17 4.7136 16.2962 4.00012 15.4 4.00012H4.6C3.70383 4.00012 3 4.7136 3 5.56594V12.2766C3 13.1289 3.70383 13.8424 4.6 13.8424H6.19908L6.2 17.0001L6.20346 16.9999L6.20502 16.999L10.4809 13.8424ZM6.79895 17.8035C6.35668 18.1299 5.73 18.0407 5.39921 17.6043C5.26989 17.4336 5.2 17.2263 5.2 17.0134L5.19937 14.8424H4.6C3.16406 14.8424 2 13.6936 2 12.2766V5.56594C2 4.14888 3.16406 3.00012 4.6 3.00012H15.4C16.8359 3.00012 18 4.14888 18 5.56594V12.2766C18 13.6936 16.8359 14.8424 15.4 14.8424H10.81L6.79895 17.8035Z" fill="#0F6CBD" /> </svg> <div class="d-flex align-items-center clr-grey-61"> 1 </div> </div> <div class="d-flex gap-4"> <div class="d-flex align-items-center clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path 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class="single-click excerpt-title" data-bi-id="blog_home_page_latest_posts_card_singleclick" data-bi-name="How can I detect which menu my item was invoked from?"> How can I detect which menu my item was invoked from? </a> </h3> <div class="d-flex gap-6 align-items-center"> <div class="avatar-parent"> <img src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/RaymondChen_5in-150x150.jpg" style="width: 20px; height: 20px;" class="avatar-20 rounded-pill a" alt="Raymond Chen"> </div> <span class="fs-14">Raymond Chen</span> </div> <p class="excerpt-body mt-16 mb-24"> Just give them all different IDs. But this might itself by an XY problem. </p> </div> </div> </div><div class="masonry-card box bg-white d-flex justify-content-between flex-column p-16 gap-20 rounded shadow position-relative border-1"> <div class="masonry-thumbnail"> <img class="post-thumbnail wp-image-110434 lazyload" width="1920" height="1080" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGQAAAA4AQMAAAAxYM+bAAAAA1BMVEXW1taWrGEgAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAEElEQVQokWNgGAWjYBTAAAADEAABC3uRhAAAAABJRU5ErkJggg==" data-src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2024/10/banner-oldnewthing-blue-16x9-1.png" alt="How do I determine whether Explorer is showing or hiding file extensions?" /> </div> <div class="card-body"> <div class="card-top"> <div class="d-flex align-items-center justify-content-between gap-12 mt-16 mb-16"> <div> Nov 20, 2024 </div> <div class="d-flex gap-12"> <div class="d-flex gap-4 clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4809 13.8424H15.4C16.2962 13.8424 17 13.1289 17 12.2766V5.56594C17 4.7136 16.2962 4.00012 15.4 4.00012H4.6C3.70383 4.00012 3 4.7136 3 5.56594V12.2766C3 13.1289 3.70383 13.8424 4.6 13.8424H6.19908L6.2 17.0001L6.20346 16.9999L6.20502 16.999L10.4809 13.8424ZM6.79895 17.8035C6.35668 18.1299 5.73 18.0407 5.39921 17.6043C5.26989 17.4336 5.2 17.2263 5.2 17.0134L5.19937 14.8424H4.6C3.16406 14.8424 2 13.6936 2 12.2766V5.56594C2 4.14888 3.16406 3.00012 4.6 3.00012H15.4C16.8359 3.00012 18 4.14888 18 5.56594V12.2766C18 13.6936 16.8359 14.8424 15.4 14.8424H10.81L6.79895 17.8035Z" fill="#0F6CBD" /> </svg> <div class="d-flex align-items-center clr-grey-61"> 2 </div> </div> <div class="d-flex gap-4"> <div class="d-flex align-items-center clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4965 17.3028L16.7408 10.9994C18.4252 9.28856 18.4199 6.52549 16.7239 4.81249C15.0611 3.13292 12.3961 3.0895 10.6978 4.69086C10.6612 4.72539 10.6251 4.76068 10.5894 4.79673L9.99299 5.40026L9.38843 4.78963C9.35529 4.75616 9.32175 4.72333 9.28783 4.69116C7.58595 3.07726 4.91654 3.10193 3.26122 4.7739C1.5729 6.4792 1.58114 9.25004 3.27679 10.9627L9.55368 17.3028C9.81404 17.5657 10.2362 17.5657 10.4965 17.3028ZM11.3 5.50029C12.5964 4.19135 14.7025 4.19204 16.0133 5.51604C17.3253 6.84123 17.3272 8.97734 16.0292 10.2968L16.0282 10.2978L10.0252 16.3577L3.98743 10.2592C2.67408 8.93263 2.67286 6.78953 3.97185 5.47746C5.26525 4.17106 7.36984 4.17208 8.6778 5.49319L9.63801 6.46306C9.8338 6.66082 10.1534 6.66067 10.349 6.46272L11.3 5.50029Z" fill="#242424" /> </svg> </div> <div class="d-flex align-items-center clr-grey-61">3 </div> </div> </div> </div> <h3 class="fs-24 fw-600 mb-16"> <a href="https://devblogs.microsoft.com/oldnewthing/20241120-00/?p=110547" class="single-click excerpt-title" data-bi-id="blog_home_page_latest_posts_card_singleclick" data-bi-name="How do I determine whether Explorer is showing or hiding file extensions?"> How do I determine whether Explorer is showing or hiding file extensions? </a> </h3> <div class="d-flex gap-6 align-items-center"> <div class="avatar-parent"> <img src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/RaymondChen_5in-150x150.jpg" style="width: 20px; 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height: 20px;" class="avatar-20 rounded-pill a" alt="Raymond Chen"> </div> <span class="fs-14">Raymond Chen</span> </div> <p class="excerpt-body mt-16 mb-24"> Taking advantage of the conversion operator. </p> </div> </div> </div><div class="masonry-card box bg-white d-flex justify-content-between flex-column p-16 gap-20 rounded shadow position-relative border-1"> <div class="masonry-thumbnail"> <img class="post-thumbnail wp-image-110434 lazyload" width="1920" height="1080" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGQAAAA4AQMAAAAxYM+bAAAAA1BMVEXW1taWrGEgAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAEElEQVQokWNgGAWjYBTAAAADEAABC3uRhAAAAABJRU5ErkJggg==" data-src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2024/10/banner-oldnewthing-blue-16x9-1.png" alt="Solving the puzzle of trying to put an object into a <CODE>std::optional</CODE>" /> </div> <div class="card-body"> <div class="card-top"> <div class="d-flex align-items-center justify-content-between gap-12 mt-16 mb-16"> <div> Nov 14, 2024 </div> <div class="d-flex gap-12"> <div class="d-flex gap-4 clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4809 13.8424H15.4C16.2962 13.8424 17 13.1289 17 12.2766V5.56594C17 4.7136 16.2962 4.00012 15.4 4.00012H4.6C3.70383 4.00012 3 4.7136 3 5.56594V12.2766C3 13.1289 3.70383 13.8424 4.6 13.8424H6.19908L6.2 17.0001L6.20346 16.9999L6.20502 16.999L10.4809 13.8424ZM6.79895 17.8035C6.35668 18.1299 5.73 18.0407 5.39921 17.6043C5.26989 17.4336 5.2 17.2263 5.2 17.0134L5.19937 14.8424H4.6C3.16406 14.8424 2 13.6936 2 12.2766V5.56594C2 4.14888 3.16406 3.00012 4.6 3.00012H15.4C16.8359 3.00012 18 4.14888 18 5.56594V12.2766C18 13.6936 16.8359 14.8424 15.4 14.8424H10.81L6.79895 17.8035Z" fill="#0F6CBD" /> </svg> <div class="d-flex align-items-center clr-grey-61"> 0 </div> </div> <div class="d-flex gap-4"> <div class="d-flex align-items-center clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4965 17.3028L16.7408 10.9994C18.4252 9.28856 18.4199 6.52549 16.7239 4.81249C15.0611 3.13292 12.3961 3.0895 10.6978 4.69086C10.6612 4.72539 10.6251 4.76068 10.5894 4.79673L9.99299 5.40026L9.38843 4.78963C9.35529 4.75616 9.32175 4.72333 9.28783 4.69116C7.58595 3.07726 4.91654 3.10193 3.26122 4.7739C1.5729 6.4792 1.58114 9.25004 3.27679 10.9627L9.55368 17.3028C9.81404 17.5657 10.2362 17.5657 10.4965 17.3028ZM11.3 5.50029C12.5964 4.19135 14.7025 4.19204 16.0133 5.51604C17.3253 6.84123 17.3272 8.97734 16.0292 10.2968L16.0282 10.2978L10.0252 16.3577L3.98743 10.2592C2.67408 8.93263 2.67286 6.78953 3.97185 5.47746C5.26525 4.17106 7.36984 4.17208 8.6778 5.49319L9.63801 6.46306C9.8338 6.66082 10.1534 6.66067 10.349 6.46272L11.3 5.50029Z" fill="#242424" /> </svg> </div> <div class="d-flex align-items-center clr-grey-61">2 </div> </div> </div> </div> <h3 class="fs-24 fw-600 mb-16"> <a href="https://devblogs.microsoft.com/oldnewthing/20241114-00/?p=110521" class="single-click excerpt-title" data-bi-id="blog_home_page_latest_posts_card_singleclick" data-bi-name="Solving the puzzle of trying to put an object into a <CODE>std::optional</CODE>"> Solving the puzzle of trying to put an object into a <CODE>std::optional</CODE> </a> </h3> <div class="d-flex gap-6 align-items-center"> <div class="avatar-parent"> <img src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/RaymondChen_5in-150x150.jpg" style="width: 20px; height: 20px;" class="avatar-20 rounded-pill a" alt="Raymond Chen"> </div> <span class="fs-14">Raymond Chen</span> </div> <p class="excerpt-body mt-16 mb-24"> How do I set a value? Let me count the ways. </p> </div> </div> </div><div class="masonry-card box bg-white d-flex justify-content-between flex-column p-16 gap-20 rounded shadow position-relative border-1"> <div class="masonry-thumbnail"> <img class="post-thumbnail wp-image-110434 lazyload" width="1920" height="1080" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGQAAAA4AQMAAAAxYM+bAAAAA1BMVEXW1taWrGEgAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAEElEQVQokWNgGAWjYBTAAAADEAABC3uRhAAAAABJRU5ErkJggg==" data-src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2024/10/banner-oldnewthing-blue-16x9-1.png" alt="The puzzle of trying to put an object into a <CODE>std::optional</CODE>" /> </div> <div class="card-body"> <div class="card-top"> <div class="d-flex align-items-center justify-content-between gap-12 mt-16 mb-16"> <div> Nov 13, 2024 </div> <div class="d-flex gap-12"> <div class="d-flex gap-4 clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4809 13.8424H15.4C16.2962 13.8424 17 13.1289 17 12.2766V5.56594C17 4.7136 16.2962 4.00012 15.4 4.00012H4.6C3.70383 4.00012 3 4.7136 3 5.56594V12.2766C3 13.1289 3.70383 13.8424 4.6 13.8424H6.19908L6.2 17.0001L6.20346 16.9999L6.20502 16.999L10.4809 13.8424ZM6.79895 17.8035C6.35668 18.1299 5.73 18.0407 5.39921 17.6043C5.26989 17.4336 5.2 17.2263 5.2 17.0134L5.19937 14.8424H4.6C3.16406 14.8424 2 13.6936 2 12.2766V5.56594C2 4.14888 3.16406 3.00012 4.6 3.00012H15.4C16.8359 3.00012 18 4.14888 18 5.56594V12.2766C18 13.6936 16.8359 14.8424 15.4 14.8424H10.81L6.79895 17.8035Z" fill="#0F6CBD" /> </svg> <div class="d-flex align-items-center clr-grey-61"> 14 </div> </div> <div class="d-flex gap-4"> <div class="d-flex align-items-center clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4965 17.3028L16.7408 10.9994C18.4252 9.28856 18.4199 6.52549 16.7239 4.81249C15.0611 3.13292 12.3961 3.0895 10.6978 4.69086C10.6612 4.72539 10.6251 4.76068 10.5894 4.79673L9.99299 5.40026L9.38843 4.78963C9.35529 4.75616 9.32175 4.72333 9.28783 4.69116C7.58595 3.07726 4.91654 3.10193 3.26122 4.7739C1.5729 6.4792 1.58114 9.25004 3.27679 10.9627L9.55368 17.3028C9.81404 17.5657 10.2362 17.5657 10.4965 17.3028ZM11.3 5.50029C12.5964 4.19135 14.7025 4.19204 16.0133 5.51604C17.3253 6.84123 17.3272 8.97734 16.0292 10.2968L16.0282 10.2978L10.0252 16.3577L3.98743 10.2592C2.67408 8.93263 2.67286 6.78953 3.97185 5.47746C5.26525 4.17106 7.36984 4.17208 8.6778 5.49319L9.63801 6.46306C9.8338 6.66082 10.1534 6.66067 10.349 6.46272L11.3 5.50029Z" fill="#242424" /> </svg> </div> <div class="d-flex align-items-center clr-grey-61">2 </div> </div> </div> </div> <h3 class="fs-24 fw-600 mb-16"> <a href="https://devblogs.microsoft.com/oldnewthing/20241113-00/?p=110516" class="single-click excerpt-title" data-bi-id="blog_home_page_latest_posts_card_singleclick" data-bi-name="The puzzle of trying to put an object into a <CODE>std::optional</CODE>"> The puzzle of trying to put an object into a <CODE>std::optional</CODE> </a> </h3> <div class="d-flex gap-6 align-items-center"> <div class="avatar-parent"> <img src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/RaymondChen_5in-150x150.jpg" style="width: 20px; height: 20px;" class="avatar-20 rounded-pill a" alt="Raymond Chen"> </div> <span class="fs-14">Raymond Chen</span> </div> <p class="excerpt-body mt-16 mb-24"> The C++ standard library template type has one of two states. It could be empty (not contain anything), or it could contain a . Suppose you start with an empty . How do you put a into it? One of my colleagues tried to do it in what seemed to be the most natural way: Use the assignment operator. Unfortunately, the assignment failed to compile: I asked for the rest of the error message, because the details will explain what the compiler tried to do (and why it couldn't). It's long, but we'll walk through it. The compiler is showing its work. It's showing you all the possible overloaded assignment opera... </p> </div> </div> </div><div class="masonry-card box bg-white d-flex justify-content-between flex-column p-16 gap-20 rounded shadow position-relative border-1"> <div class="masonry-thumbnail"> <img class="post-thumbnail wp-image-110434 lazyload" width="1920" height="1080" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGQAAAA4AQMAAAAxYM+bAAAAA1BMVEXW1taWrGEgAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAEElEQVQokWNgGAWjYBTAAAADEAABC3uRhAAAAABJRU5ErkJggg==" data-src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2024/10/banner-oldnewthing-blue-16x9-1.png" alt="Why did Windows 95 setup use three operating systems?" /> </div> <div class="card-body"> <div class="card-top"> <div class="d-flex align-items-center justify-content-between gap-12 mt-16 mb-16"> <div> Nov 12, 2024 </div> <div class="d-flex gap-12"> <div class="d-flex gap-4 clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4809 13.8424H15.4C16.2962 13.8424 17 13.1289 17 12.2766V5.56594C17 4.7136 16.2962 4.00012 15.4 4.00012H4.6C3.70383 4.00012 3 4.7136 3 5.56594V12.2766C3 13.1289 3.70383 13.8424 4.6 13.8424H6.19908L6.2 17.0001L6.20346 16.9999L6.20502 16.999L10.4809 13.8424ZM6.79895 17.8035C6.35668 18.1299 5.73 18.0407 5.39921 17.6043C5.26989 17.4336 5.2 17.2263 5.2 17.0134L5.19937 14.8424H4.6C3.16406 14.8424 2 13.6936 2 12.2766V5.56594C2 4.14888 3.16406 3.00012 4.6 3.00012H15.4C16.8359 3.00012 18 4.14888 18 5.56594V12.2766C18 13.6936 16.8359 14.8424 15.4 14.8424H10.81L6.79895 17.8035Z" fill="#0F6CBD" /> </svg> <div class="d-flex align-items-center clr-grey-61"> 5 </div> </div> <div class="d-flex gap-4"> <div class="d-flex align-items-center clr-grey-61"> <svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"> <path class="dark-theme" d="M10.4965 17.3028L16.7408 10.9994C18.4252 9.28856 18.4199 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data-bi-name="Why did Windows 95 setup use three operating systems?"> Why did Windows 95 setup use three operating systems? </a> </h3> <div class="d-flex gap-6 align-items-center"> <div class="avatar-parent"> <img src="https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/RaymondChen_5in-150x150.jpg" style="width: 20px; height: 20px;" class="avatar-20 rounded-pill a" alt="Raymond Chen"> </div> <span class="fs-14">Raymond Chen</span> </div> <p class="excerpt-body mt-16 mb-24"> Simplifying the problem to an earlier problem. </p> </div> </div> </div> </div> </section> <div class="fs-16 d-flex justify-content-center mt-40"> <a href="javascript:" class="read-more btn-secondary" id="pload-more" data-bi-area="latest_posts" data-bi-id="blog_home_page_latest_posts_load_more" data-bi-name="Load more posts" data-siteid="38">Load more posts</a> </div> <div id="loader-overlay" class="lp-loader" style="display:none;"> <div class="cv-spinner"> <span class="spinner"></span> 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href='https://devblogs.microsoft.com/oldnewthing/2020/08'>August 2020</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2020/07'>July 2020</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2020/06'>June 2020</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2020/05'>May 2020</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2020/04'>April 2020</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2020/03'>March 2020</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2020/02'>February 2020</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2020/01'>January 2020</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/12'>December 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/11'>November 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/10'>October 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/09'>September 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/08'>August 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/07'>July 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/06'>June 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/05'>May 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/04'>April 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/03'>March 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/02'>February 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2019/01'>January 2019</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/12'>December 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/11'>November 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/10'>October 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/09'>September 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/08'>August 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/07'>July 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/06'>June 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/05'>May 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/04'>April 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/03'>March 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/02'>February 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2018/01'>January 2018</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/12'>December 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/11'>November 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/10'>October 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/09'>September 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/08'>August 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/07'>July 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/06'>June 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/05'>May 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/04'>April 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/03'>March 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/02'>February 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2017/01'>January 2017</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/12'>December 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/11'>November 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/10'>October 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/09'>September 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/08'>August 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/07'>July 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/06'>June 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/05'>May 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/04'>April 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/03'>March 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/02'>February 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2016/01'>January 2016</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/12'>December 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/11'>November 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/10'>October 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/09'>September 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/08'>August 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/07'>July 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/06'>June 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/05'>May 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/04'>April 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/03'>March 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/02'>February 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2015/01'>January 2015</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/12'>December 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/11'>November 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/10'>October 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/09'>September 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/08'>August 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/07'>July 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/06'>June 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/05'>May 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/04'>April 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/03'>March 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/02'>February 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2014/01'>January 2014</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/12'>December 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/11'>November 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/10'>October 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/09'>September 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/08'>August 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/07'>July 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/06'>June 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/05'>May 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/04'>April 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/03'>March 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/02'>February 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2013/01'>January 2013</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/12'>December 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/11'>November 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/10'>October 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/09'>September 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/08'>August 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/07'>July 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/06'>June 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/05'>May 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/04'>April 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/03'>March 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/02'>February 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2012/01'>January 2012</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/12'>December 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/11'>November 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/10'>October 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/09'>September 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/08'>August 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/07'>July 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/06'>June 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/05'>May 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/04'>April 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/03'>March 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/02'>February 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2011/01'>January 2011</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/12'>December 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/11'>November 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/10'>October 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/09'>September 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/08'>August 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/07'>July 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/06'>June 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/05'>May 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/04'>April 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/03'>March 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/02'>February 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2010/01'>January 2010</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/12'>December 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/11'>November 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/10'>October 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/09'>September 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/08'>August 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/07'>July 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/06'>June 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/05'>May 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/04'>April 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/03'>March 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/02'>February 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2009/01'>January 2009</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/12'>December 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/11'>November 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/10'>October 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/09'>September 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/08'>August 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/07'>July 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/06'>June 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/05'>May 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/04'>April 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/03'>March 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/02'>February 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2008/01'>January 2008</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/12'>December 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/11'>November 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/10'>October 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/09'>September 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/08'>August 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/07'>July 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/06'>June 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/05'>May 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/04'>April 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/03'>March 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/02'>February 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2007/01'>January 2007</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/12'>December 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/11'>November 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/10'>October 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/09'>September 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/08'>August 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/07'>July 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/06'>June 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/05'>May 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/04'>April 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/03'>March 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/02'>February 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2006/01'>January 2006</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/12'>December 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/11'>November 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/10'>October 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/09'>September 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/08'>August 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/07'>July 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/06'>June 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/05'>May 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/04'>April 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/03'>March 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/02'>February 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2005/01'>January 2005</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/12'>December 2004</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/11'>November 2004</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/10'>October 2004</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/09'>September 2004</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/08'>August 2004</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/07'>July 2004</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/06'>June 2004</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/05'>May 2004</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/04'>April 2004</a></li> <li><a href='https://devblogs.microsoft.com/oldnewthing/2004/03'>March 2004</a></li> <li><a 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