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data-bi-name="intopic toc" aria-label="In this article"> <h2 id="ms--in-this-article" class="title is-6 margin-block-xs">In this article</h2> </nav><p>Mark Russinovich's technical blog covering topics such as Windows troubleshooting, technologies and security.</p> <h3 id="hunting-down-and-killing-ransomware"><a href="../markrussinovich/hunting-down-and-killing-ransomware" data-linktype="relative-path">Hunting Down and Killing Ransomware</a></h3> <p>Scareware, a type of malware that mimics antimalware software, has been around for a decade and...</p> <p>Date: 01/02/2013</p> <h3 id="windows-azure-host-updates-why-when-and-how"><a href="../markrussinovich/windows-azure-host-updates-why-when-and-how" data-linktype="relative-path">Windows Azure Host Updates: Why, When, and How</a></h3> <p>Windows Azure’s compute platform, which includes Web Roles, Worker Roles, and Virtual Machines, is...</p> <p>Date: 08/22/2012</p> <h3 id="announcing-trojan-horse-the-novel"><a href="../markrussinovich/announcing-trojan-horse-the-novel" data-linktype="relative-path">Announcing Trojan Horse, the Novel!</a></h3> <p>Many of you have read Zero Day, my first novel. It’s a cyberthriller that features Jeff Aiken...</p> <p>Date: 05/06/2012</p> <h3 id="the-case-of-my-moms-broken-microsoft-security-essentials-installation"><a href="../markrussinovich/the-case-of-my-moms-broken-microsoft-security-essentials-installation" data-linktype="relative-path">The Case of My Mom’s Broken Microsoft Security Essentials Installation</a></h3> <p>As a reader of this blog I suspect that you, like me, are the IT support staff for your family and...</p> <p>Date: 01/03/2012</p> <h3 id="the-case-of-the-installer-service-error"><a href="../markrussinovich/the-case-of-the-installer-service-error" data-linktype="relative-path">The Case of the Installer Service Error</a></h3> <p>This case unfolds with a network administrator charged with the rollout of the Microsoft Windows...</p> <p>Date: 11/27/2011</p> <h3 id="fixing-disk-signature-collisions"><a href="../markrussinovich/fixing-disk-signature-collisions" data-linktype="relative-path">Fixing Disk Signature Collisions</a></h3> <p>Disk cloning has become common as IT professionals virtualize physical servers using tools like...</p> <p>Date: 11/06/2011</p> <h3 id="the-case-of-the-mysterious-reboots"><a href="../markrussinovich/the-case-of-the-mysterious-reboots" data-linktype="relative-path">The Case of the Mysterious Reboots</a></h3> <p>This case opens when a Sysinternals power user, who also works as a system administrator at a large...</p> <p>Date: 10/02/2011</p> <h3 id="troubleshooting-with-the-new-sysinternals-administrators-reference"><a href="../markrussinovich/troubleshooting-with-the-new-sysinternals-administrators-reference" data-linktype="relative-path">Troubleshooting with the New Sysinternals Administrator’s Reference</a></h3> <p>Aaron Margosis and I are thrilled to announce that the long awaited, and some say long overdue,...</p> <p>Date: 07/03/2011</p> <h3 id="the-zero-day-book-trailer"><a href="../markrussinovich/the-zero-day-book-trailer" data-linktype="relative-path">The Zero Day Book Trailer</a></h3> <p>I just got back the finished version of the video trailer for my new cyber thriller Zero Day, which...</p> <p>Date: 05/03/2011</p> <h3 id="analyzing-a-stuxnet-infection-with-the-sysinternals-tools-part-3"><a href="../markrussinovich/analyzing-a-stuxnet-infection-with-the-sysinternals-tools-part-3" data-linktype="relative-path">Analyzing a Stuxnet Infection with the Sysinternals Tools, Part 3</a></h3> <p>In the first post of this series, I used Autoruns, Process Explorer and VMMap to statically analyze...</p> <p>Date: 04/17/2011</p> <h3 id="analyzing-a-stuxnet-infection-with-the-sysinternals-tools-part-2"><a href="../markrussinovich/analyzing-a-stuxnet-infection-with-the-sysinternals-tools-part-2" data-linktype="relative-path">Analyzing a Stuxnet Infection with the Sysinternals Tools, Part 2</a></h3> <p>In Part 1 I began my investigation of an example infection of the infamous Stuxnet worm with the...</p> <p>Date: 04/15/2011</p> <h3 id="analyzing-a-stuxnet-infection-with-the-sysinternals-tools-part-1"><a href="../markrussinovich/analyzing-a-stuxnet-infection-with-the-sysinternals-tools-part-1" data-linktype="relative-path">Analyzing a Stuxnet Infection with the Sysinternals Tools, Part 1</a></h3> <p>Though I didn’t realize what I was seeing, Stuxnet first came to my attention on July 5 last summer...</p> <p>Date: 03/26/2011</p> <h3 id="zero-day-is-here"><a href="../markrussinovich/zero-day-is-here" data-linktype="relative-path">Zero Day is Here!</a></h3> <p>I’m excited to announce that my first novel, a cyber thriller entitled Zero Day, is now available at...</p> <p>Date: 03/13/2011</p> <h3 id="the-case-of-the-unusable-system"><a href="../markrussinovich/the-case-of-the-unusable-system" data-linktype="relative-path">The Case of the Unusable System</a></h3> <p>This post continues in the malware hunting theme of the last couple of posts as Zero Day...</p> <p>Date: 03/13/2011</p> <h3 id="the-case-of-the-sysinternals-blocking-malware"><a href="../markrussinovich/the-case-of-the-sysinternals-blocking-malware" data-linktype="relative-path">The Case of the Sysinternals-Blocking Malware</a></h3> <p>Continuing the theme of focusing on malware-related cases (last week I posted The Case of the...</p> <p>Date: 03/06/2011</p> <h3 id="the-case-of-the-malicious-autostart"><a href="../markrussinovich/the-case-of-the-malicious-autostart" data-linktype="relative-path">The Case of the Malicious Autostart</a></h3> <p>Given that my novel, Zero Day, will be published in a few weeks and is based on malware’s use as a...</p> <p>Date: 02/26/2011</p> <h3 id="announcing-zero-day-the-novel"><a href="../markrussinovich/announcing-zero-day-the-novel" data-linktype="relative-path">Announcing Zero Day, the Novel!</a></h3> <p>You’ve seen the news if you’re my friend on Facebook, follow me on Twitter, or subscribe...</p> <p>Date: 01/18/2011</p> <h3 id="blue-screens-in-designer-colors-with-one-click"><a href="../markrussinovich/blue-screens-in-designer-colors-with-one-click" data-linktype="relative-path">“Blue Screens” in Designer Colors with One Click</a></h3> <p>My last blog post described how to use local kernel debugging to change the colors of the Windows...</p> <p>Date: 01/09/2011</p> <h3 id="a-bluescreen-by-any-other-color"><a href="../markrussinovich/a-bluescreen-by-any-other-color" data-linktype="relative-path">A Bluescreen By Any Other Color</a></h3> <p>Note: for an easier way to customize the blue screen’s colors, see my next blog post, “Blue Screens...</p> <p>Date: 12/13/2010</p> <h3 id="the-cases-of-the-blue-screens-finding-clues-in-a-crash-dump-and-on-the-web"><a href="../markrussinovich/the-cases-of-the-blue-screens-finding-clues-in-a-crash-dump-and-on-the-web" data-linktype="relative-path">The Cases of the Blue Screens: Finding Clues in a Crash Dump and on the Web</a></h3> <p>My last couple of posts have looked at the lighter side of blue screens by showing you how to...</p> <p>Date: 12/12/2010</p> <h3 id="the-case-of-the-slow-project-file-opens"><a href="../markrussinovich/the-case-of-the-slow-project-file-opens" data-linktype="relative-path">The Case of the Slow Project File Opens</a></h3> <p>If you’ve seen one of my Case of the Unexplained presentations (like the one I delivered at TechEd...</p> <p>Date: 12/06/2010</p> <h3 id="livekd-for-virtual-machine-debugging"><a href="../markrussinovich/livekd-for-virtual-machine-debugging" data-linktype="relative-path">LiveKd for Virtual Machine Debugging</a></h3> <p>When Dave Solomon and I were writing the 3rd edition of the Windows Internals book series Inside...</p> <p>Date: 10/09/2010</p> <h3 id="the-case-of-the-random-ie-crash"><a href="../markrussinovich/the-case-of-the-random-ie-crash" data-linktype="relative-path">The Case of the Random IE Crash</a></h3> <p>While I long for the day when I no longer experience the effects of buggy software, there’s...</p> <p>Date: 06/01/2010</p> <h3 id="the-case-of-the-printing-failure"><a href="../markrussinovich/the-case-of-the-printing-failure" data-linktype="relative-path">The Case of the Printing Failure</a></h3> <p>The most interesting cases I receive are those that demonstrate a unique troubleshooting technique...</p> <p>Date: 04/12/2010</p> <h3 id="pushing-the-limits-of-windows-user-and-gdi-objects--part-2"><a href="../markrussinovich/pushing-the-limits-of-windows-user-and-gdi-objects-part-2" data-linktype="relative-path">Pushing the Limits of Windows: USER and GDI Objects – Part 2</a></h3> <p>Last time, I covered the limits and how to measure usage of one of the two key window manager...</p> <p>Date: 03/31/2010</p> <h3 id="pushing-the-limits-of-windows-user-and-gdi-objects--part-1"><a href="../markrussinovich/pushing-the-limits-of-windows-user-and-gdi-objects-part-1" data-linktype="relative-path">Pushing the Limits of Windows: USER and GDI Objects – Part 1</a></h3> <p>So far in the Pushing the Limits of Windows series, I’ve focused on resources managed by the Windows...</p> <p>Date: 02/24/2010</p> <h3 id="the-machine-sid-duplication-myth-and-why-sysprep-matters"><a href="../markrussinovich/the-machine-sid-duplication-myth-and-why-sysprep-matters" data-linktype="relative-path">The Machine SID Duplication Myth (and Why Sysprep Matters)</a></h3> <p>On November 3 2009, Sysinternals retired NewSID, a utility that changes a computers machine Security...</p> <p>Date: 11/03/2009</p> <h3 id="channel-9-inside-windows-7-redux"><a href="../markrussinovich/channel-9-inside-windows-7-redux" data-linktype="relative-path">Channel 9: Inside Windows 7 Redux</a></h3> <p>Windows 7 hit general availability today, putting it in stores and on new PC’s. There are...</p> <p>Date: 10/22/2009</p> <h3 id="recent-and-upcoming-speaking-engagements"><a href="../markrussinovich/recent-and-upcoming-speaking-engagements" data-linktype="relative-path">Recent and Upcoming Speaking Engagements</a></h3> <p>I wanted to update you on my recent and upcoming speaking engagements. First, I’ve been...</p> <p>Date: 10/08/2009</p> <h3 id="pushing-the-limits-of-windows-handles"><a href="../markrussinovich/pushing-the-limits-of-windows-handles" data-linktype="relative-path">Pushing the Limits of Windows: Handles</a></h3> <p>This is the fifth post in my Pushing the Limits of Windows series where I explore the upper bound on...</p> <p>Date: 09/29/2009</p> <h3 id="the-case-of-the-temporary-registry-profiles"><a href="../markrussinovich/the-case-of-the-temporary-registry-profiles" data-linktype="relative-path">The Case of the Temporary Registry Profiles</a></h3> <p>Microsoft Customer Support Services (CSS) is one of the biggest customers of the Sysinternals tools...</p> <p>Date: 08/10/2009</p> <h3 id="windows-internals-5th-edition-is-available"><a href="../markrussinovich/windows-internals-5th-edition-is-available" data-linktype="relative-path">Windows Internals 5th Edition is Available!</a></h3> <p>I’m proud to announce that Windows Internals, 5th Edition is now available. It’s been a long road,...</p> <p>Date: 07/06/2009</p> <h3 id="pushing-the-limits-of-windows-processes-and-threads"><a href="../markrussinovich/pushing-the-limits-of-windows-processes-and-threads" data-linktype="relative-path">Pushing the Limits of Windows: Processes and Threads</a></h3> <p>This is the fourth post in my Pushing the Limits of Windows series that explores the boundaries of...</p> <p>Date: 07/05/2009</p> <h3 id="the-case-of-the-slow-keynote-demo"><a href="../markrussinovich/the-case-of-the-slow-keynote-demo" data-linktype="relative-path">The Case of the Slow Keynote Demo</a></h3> <p>A couple of weeks ago I participated for the first time in the keynote at Microsoft’s Teched US...</p> <p>Date: 05/23/2009</p> <h3 id="pushing-the-limits-of-windows-paged-and-nonpaged-pool"><a href="../markrussinovich/pushing-the-limits-of-windows-paged-and-nonpaged-pool" data-linktype="relative-path">Pushing the Limits of Windows: Paged and Nonpaged Pool</a></h3> <p>In previous Pushing the Limits posts, I described the two most basic system resources, physical...</p> <p>Date: 03/10/2009</p> <h3 id="the-case-of-the-crashed-phone-call"><a href="../markrussinovich/the-case-of-the-crashed-phone-call" data-linktype="relative-path">The Case of the Crashed Phone Call</a></h3> <p>David Solomon, my coauthor for the Windows Internals books, was recently in the middle of an...</p> <p>Date: 12/30/2008</p> <h3 id="the-case-of-the-phantom-desktop-files"><a href="../markrussinovich/the-case-of-the-phantom-desktop-files" data-linktype="relative-path">The Case of the Phantom Desktop Files</a></h3> <p>A few weeks ago, my wife mentioned that she sometimes saw files in her desktop folder that didn’t...</p> <p>Date: 12/28/2008</p> <h3 id="pushing-the-limits-of-windows-virtual-memory"><a href="../markrussinovich/pushing-the-limits-of-windows-virtual-memory" data-linktype="relative-path">Pushing the Limits of Windows: Virtual Memory</a></h3> <p>In my first Pushing the Limits of Windows post, I discussed physical memory limits, including the...</p> <p>Date: 11/17/2008</p> <h3 id="the-case-of-the-random-ie-and-wmp-crashes"><a href="../markrussinovich/the-case-of-the-random-ie-and-wmp-crashes" data-linktype="relative-path">The Case of the Random IE and WMP Crashes</a></h3> <p>When I experienced a crash in Internet Explorer (IE) on my home 64-bit gaming system one day, I...</p> <p>Date: 06/02/2008</p> <h3 id="guest-post-the-case-of-the-frontpage-error"><a href="../markrussinovich/guest-post-the-case-of-the-frontpage-error" data-linktype="relative-path">Guest Post: The Case of the FrontPage Error</a></h3> <p>Welcome to the first guest "Case Of" blog post! I've received numerous great troubleshooting cases...</p> <p>Date: 05/13/2008</p> <h3 id="the-case-of-the-system-process-cpu-spikes"><a href="../markrussinovich/the-case-of-the-system-process-cpu-spikes" data-linktype="relative-path">The Case of the System Process CPU Spikes</a></h3> <p>As you’ve probably surmised by my blog posts and other writings, I like knowing exactly what my...</p> <p>Date: 04/07/2008</p> <h3 id="inside-vista-sp1-file-copy-improvements"><a href="../markrussinovich/inside-vista-sp1-file-copy-improvements" data-linktype="relative-path">Inside Vista SP1 File Copy Improvements</a></h3> <p>Windows Vista SP1 includes a number of enhancements over the original Vista release in the areas of...</p> <p>Date: 02/04/2008</p> <p><a href="../markrussinovich/page-2" data-linktype="relative-path">Next></a></p> </div><div id="ms--inline-notifications" class="margin-block-xs" data-bi-name="inline-notification"></div><div id="assertive-live-region" role="alert" 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