Windows 11 updates

Winsage
October 9, 2026
A user known as “u/Shanaudio” reverted to Windows 10 after experiencing frustration with the Windows 11 26H2 update. Following the update, he faced a family medical emergency and needed to research medical information online. The installation of the built-in Windows language input method took 20 minutes, compared to just 2 minutes on Windows 10. This delay prompted him to downgrade to the older operating system.
Winsage
September 28, 2026
Microsoft's Windows 10 update "KB5126256," intended as a licensing preparation package for Extended Security Updates, has caused issues for users, including one Reddit user whose File Explorer crashes when clicking on files due to the automatic activation of the Copilot feature. The crashes were misleadingly attributed to Microsoft Edge, but further investigation revealed they were linked to "mscopilot_proxy.exe" and the module "ShellEh6055x64.dll," associated with the 4t Tray Minimizer application. Users have reported that uninstalling problematic updates can provide temporary relief, while some have chosen to disable updates entirely, despite Windows not offering a complete option to do so.
Winsage
September 15, 2026
Microsoft has released out-of-band updates for Windows 11 versions 26H1, 25H2, and 24H2 to address security vulnerabilities and improve system performance. The KB5129194 patch for version 26H1 fixes a critical elevation-of-privilege vulnerability (CVE-2026-62721) related to the Windows User-Mode Power Service (UMPS). The KB5129195 update for versions 25H2 and 24H2 also addresses a similar UMPS vulnerability and resolves a connection issue with Remote Desktop Services. Additionally, the updates fix problems with multichannel audio features on certain USB Audio Class 1.0 devices. These updates include enhancements from the September 2026 Patch Tuesday release, such as Taskbar customization, a faster Windows Search experience, and new Start Menu options. Users with unmanaged PCs will receive these updates automatically but can also check for updates manually.
Winsage
September 1, 2026
Microsoft is addressing two notable issues in Windows 11. The first is a harmless glitch that falsely indicates "Microsoft Defender Antivirus is turned off," which does not impact the antivirus's functionality. Users are advised to wait for a Microsoft update to resolve this. The second issue involves mouse customization settings not saving correctly since the August 27th update, although it only affects cosmetic preferences and not critical settings like pointer speed. Additionally, Microsoft has identified a solution for a game-breaking bug related to the "inpoutx64" driver, which will now be automatically blocked when launching Arc Raiders, with plans to extend this block to Marvel Tokon: Fighting Souls. Developers at Embark Studios have also implemented fixes for affected games, except for Tokon, for which players should use Microsoft's official workaround until a permanent solution is available.
Winsage
August 28, 2026
Microsoft has released Windows 11 version 26H2 (Build 26300.9278) in the Release Preview Channel for customers to preview ahead of its general availability later this year. This version will be delivered as an enablement package, allowing for seamless integration of new features and enhancements. Users with PCs in the Release Preview channel can manually install this version. Key features for business users include Windows Backup, app actions from the Taskbar, and improvements to File Explorer. Organizations can deploy Windows 11 version 26H2 using Windows Update client policies and Windows Server Update Services (WSUS). Updates to the ISOs on the Windows Insider Program download site will also reflect this new version.
Winsage
August 25, 2026
Microsoft has acknowledged a significant issue with the .NET Framework updates from August 2026, causing disruptions in printing and PDF export functionalities in certain applications, particularly those using the Windows Presentation Foundation (WPF) UI framework. After installing the update, some WPF applications may encounter a System.IO.FileFormatException when printing or generating PDF/XPS content with specific fonts, including Calibri. This issue affects various platforms, including Windows 10, Windows 11, and Windows Server editions from 2012 to 2025. Microsoft has provided a temporary workaround involving the Switch.MS.Internal.TtfDelta.DisableCmapAndSbitOverflowProtection AppContext switch, but cautions that it may expose systems to vulnerabilities. This situation is reminiscent of a similar incident in February 2021, where WPF applications and Visual Studio experienced crashes after Windows 10 cumulative updates. Additionally, on the same day, Microsoft offered a workaround for another issue caused by Windows 11 updates that led to crashes in certain games.
Winsage
August 24, 2026
Microsoft has acknowledged gaming issues related to Windows 11 updates released on August 11, 2026, affecting games like ARC Raiders, MARVEL Tōkon: Fighting Souls, and The Finals. Problems reported include game crashes, failures to launch, freezes, and unexpected system restarts, particularly on Windows 11 versions 24H2 and 25H2. Microsoft identified a link between these issues and drivers or components associated with RGB lighting devices, specifically the inpoutx64.sys driver. A temporary workaround involves disabling the inpoutx64 driver through the Windows Registry, with caution advised regarding potential unintended consequences. Users are encouraged to report issues via the Feedback Hub app as Microsoft investigates further.
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