preview update Archives

Winsage

September 19, 2026

Microsoft fixes bug behind ‘Defender Antivirus is turned off’ alerts

Microsoft resolved an issue that caused misleading alerts indicating that Defender Antivirus was disabled after recent updates. This fix was confirmed in an update to the Windows release health dashboard and was implemented in the Microsoft Defender Antivirus update (version 4.18.26080.4) rolled out on September 17. The bug, acknowledged by Microsoft in late August, affected users in the Release Preview Channel of the Windows Insider program since at least June and impacted all supported versions of Windows clients and servers. Users received erroneous notifications in the Windows Security app prompting them to activate Microsoft Defender Antivirus, despite it functioning correctly. Misleading alerts could appear upon Windows startup and intermittently thereafter, even when notification settings were disabled.

Winsage

September 17, 2026

Microsoft Confirms Windows 11 Speed Fixes Are Coming to All Users

Windows 11 users have experienced delays in File Explorer and the Start menu since the operating system's launch in 2021. Recent reports from Windows Insiders indicate significant improvements in system responsiveness, confirmed by Marcus Ash from Microsoft, who stated that these enhancements will be rolled out to all users by fall 2026. Recent cumulative updates have addressed issues like File Explorer lag and Start menu stuttering, with specific updates (KB5120998, KB5095093, and KB5089573) improving responsiveness and reducing micro-stutters. Enhancements to the taskbar, Start menu, and context menus are also being developed, including taskbar repositioning and streamlined context menus. Users on the 25H2 version can expect these improvements through cumulative updates before the 26H2 update this fall. Keeping Windows Update active will ensure access to these enhancements.

Winsage

September 12, 2026

Windows 11’s useless Copilot key finally does something, you can map it to right-click

Recent updates from Microsoft allow users to remap the Copilot key on Windows 11 to either the Right Ctrl key or the Context Menu key. This feature is part of the Release Preview Build 26100.9539 for 24H2 and 26200.9539 for 25H2, rolled out on September 10, 2026. Users can access this remapping option under Settings > Bluetooth & devices > Keyboard. The Copilot key was introduced in January 2024 but received criticism for being cumbersome. Microsoft acknowledged the challenges posed by the Copilot key, particularly for users relying on the Right Ctrl or Context Menu keys for shortcuts and assistive technologies. If remapped to the Right Ctrl key, certain shortcut combinations may not function as expected. The feature is expected to be fully rolled out on October 12, 2026.

Winsage

September 12, 2026

Microsoft warns that killing VBScript could break Windows activation for businesses

Microsoft is phasing out VBScript and urging organizations to transition to PowerShell. The Slmgr.vbs tool, used for managing Windows activation, will lose functionality as VBScript is deprecated. Slmgr.vbs allows users to install product keys, activate Windows, and check licensing status. VBScript will soon only be available as a Feature on Demand, requiring manual installation in future updates. PowerShell's OSLicense module offers similar capabilities to Slmgr.vbs for managing activation information. The OSLicense module is available for Windows 11 users after the August 2026 Preview update and will be supported in the next major release of Windows Server. Organizations are advised to review their existing scripts and tools to adapt to this transition.

Winsage

September 11, 2026

Microsoft fixes Teams, Outlook launch failures on ARM Windows PCs

Microsoft addressed a significant bug that affected the launch of Teams and Outlook on ARM-based Windows devices after updates from the August 2026 Patch Tuesday. The issue primarily impacted users of devices like the Surface Pro 11 and Surface Laptop 7 running Windows 11 24H2 or later, who had not installed necessary updates from the Microsoft Store. The bug caused Teams and Outlook to fail to launch or close unexpectedly following the installation of security updates released on or after August 11, 2026 (KB5121003). Classic versions of Outlook and other applications were not affected. A temporary workaround was suggested, involving updating the Auto Super Resolution Package. The bug was resolved through cumulative updates released on September 8, 2026 (KB5124012), and users were urged to install the latest updates for improvements and issue resolutions. Additionally, Microsoft acknowledged other issues related to updates from August, including disruptions in printing and PDF exporting due to .NET Framework updates, gaming problems from peripherals with RGB lighting, and alerts regarding Microsoft Defender Antivirus being disabled. They also fixed issues related to the loss of custom mouse settings and desktop configurations following the installation of the KB5120998 August 2026 preview update.

Winsage

September 10, 2026

Microsoft says September updates fix mouse settings reset issues

Microsoft acknowledged an issue with the KB5120998 August 2026 preview update for Windows 11, where mouse settings related to cursor personalization were altered or reset. This problem affected non-English Windows installations, causing personalized settings to fail to load and revert to standard configurations. The issue was resolved in the subsequent KB5124008 September 2026 cumulative update, which users were encouraged to install. KB5120998 was an optional update, potentially limiting the number of affected users. Additionally, Microsoft has been addressing various mouse-related issues in recent months, including problems with the Windows Recovery Environment and disappearing mouse pointers in Outlook.

Winsage

September 10, 2026

Microsoft fixes bug that wiped Windows desktop settings

Microsoft announced that the September 2026 Patch Tuesday updates resolved an issue affecting desktop settings on certain Windows devices, which caused desktop wallpapers to revert to a solid black background after the installation of the KB5120998 August 2026 preview update. This bug impacted Windows 11 24H2 and 25H2 systems, preventing the correct loading of desktop settings and also affecting mouse settings. Microsoft recommended users update their devices to the latest security update released on September 8, 2026 (KB5124008) to benefit from the fix.

Winsage

September 4, 2026

Are Vibe-Coding and AI-Slop the cause of Windows 11 issues (desktop background, mouse pointer, etc.)?

The preview update KB5120998 for Windows 11 versions 24H2 and 25H2, released on August 27, 2026, has caused issues such as erratic mouse pointer behavior and disappearing desktop backgrounds, particularly in non-English versions. Microsoft has acknowledged these problems, indicating that they stem from coding practices that fail to load certain settings correctly. Specific issues include a "black desktop background" due to desktop settings not loading and mouse customization resetting to default configurations. The problems may be related to translation issues within the registry, as registry keys have been altered post-update. Users have suggested that manually adjusting these registry keys could restore normal functionality.

Winsage

September 4, 2026

Microsoft says KB5120998 Windows update resets desktop settings

Microsoft has acknowledged an issue affecting some Windows devices after the installation of the KB5120998 preview update released on August 27, 2026. This issue primarily impacts Windows 11 versions 24H2 and 25H2, causing desktop settings, including wallpaper and themes, to reset or be lost, often resulting in a solid black background. Users are unable to manually restore their customized settings due to the issue preventing the correct loading of settings. The KB5120998 update was intended to enhance the Start menu, taskbar, and Windows search but inadvertently introduced complications, including changes to mouse settings that cannot be restored. The update is optional but installs automatically for users with the "Get the latest updates as soon as they're available" feature enabled. A similar bug occurred in February 2020 with the KB4539602 update, which disrupted desktop wallpaper functionality.

Winsage

August 31, 2026

Microsoft’s latest Windows update breaks cursors, wallpaper, and more – what to do if you’re affected

Windows 11 users who installed the September preview update (KB5120998) are experiencing a bug that alters or erases personalized mouse cursor settings, resulting in cursors that may be too large, too small, or invisible. Microsoft has acknowledged this issue, describing it as causing "appearance regressions and intermittent animation changes." High-DPI cursors have been replaced with larger, white cursors, and attempts to revert to previous settings have failed. Additionally, users have reported issues with wallpapers reverting to a black screen and blurry fonts, although Microsoft has not formally acknowledged the font issue. Users can uninstall the update by navigating to Settings, selecting Windows Update, clicking on Update History, and finding the option to uninstall the update labeled 2026-08 Preview Update (KB5120998). Microsoft is investigating the cursor problem and plans to provide updates by September 8.