Checked against Microsoft's release notes; hands-on verification added when available.
The latest Windows 11 Insider preview builds introduce a redesigned File Explorer context menu, support for Emoji 17.0, and automatic Wi-Fi profile reuse in the Windows Recovery Environment (WinRE). These updates also include modern toolbar updates for Magnifier, phone notifications in the Start menu, and the removal of the WMIC command-line tool.
Maya Reyes
Priya Natarajan
Priya Natarajan
Priya Natarajan
Maya Reyes
Priya Natarajan
Maya Reyes
Priya Natarajan
Maya Reyes
Priya Natarajan
What's new in each Windows 11 cumulative update and feature release: what changed, what to expect, and whether to install it.
The latest Windows 11 Insider preview builds introduce a redesigned File Explorer context menu, support for Emoji 17.0, and automatic Wi-Fi profile reuse in the Windows Recovery Environment (WinRE). These updates also include modern toolbar updates for Magnifier, phone notifications in the Start menu, and the removal of the WMIC command-line tool.
By Maya Reyes
KB5129195 is an out-of-band update released on September 14, 2026, for Windows 11 version 24H2 and version 25H2. It advances systems to OS Build 26200.9457 and Build 26100.9457 to address key fixes following the previous update cycle. You can download it directly through Windows Update or from the Microsoft Update Catalog.
By Priya Natarajan
KB5129242 is an out-of-band update released by Microsoft on September 14, 2026, for Windows 11 version 23H2. It updates the operating system to OS Build 22631.7584. The release is delivered outside of the standard monthly Patch Tuesday schedule to address targeted system servicing requirements.
By Maya Reyes
The latest Windows 11 Insider Preview releases for September 2026 introduce a redesigned WinUI AutoPlay experience, individual privacy permissions for desktop applications, and an automatic window maximization accessibility toggle. These updates also streamline lock screen widgets and expand inline message previews in the Start menu. Insiders in the Experimental channel can download builds such as Build 26340.9233 and Build 26300.9032 directly via Windows Update.
By Priya Natarajan
Fixes for updates that won't install, get stuck, roll back, or break something after installing.
If KB5124012 fails to install or gets stuck during the download process, it usually means temporary update files are corrupted or the background update service needs a quick reset. Running the built-in Windows Update troubleshooter or clearing out the download cache generally resolves the issue. Once cleared, checking for updates again allows Windows 11 to complete the update to OS Build 28000.2954 cleanly.
By Daniel Okafor
If KB5124008 fails to install or gets stuck during download, running the built-in Windows Update troubleshooter or clearing the SoftwareDistribution cache directory usually resolves the problem. This update, released on September 8, 2026, applies to Windows 11 versions 24H2 and 25H2, bringing OS builds to 26100.9445 and 26200.9445. Clearing cached installation files forces Windows Update to fetch fresh components from Microsoft servers.
By Maya Reyes
If KB5122880 is failing to install or stuck during download, running the built-in Windows Update troubleshooter usually resolves basic software glitches. If the update remains stuck, clearing the Windows Update cache folder or resetting background update services will clear out damaged update files and allow Windows 11 to complete the update successfully.
By Maya Reyes
If KB5078883 fails or gets stuck during installation on Windows 11, run the automated Windows Update troubleshooter from Settings. You can also use the Get Help app to reset update components or clear temporary system update files in Storage settings. Restart your PC afterwards and check for updates again to trigger a fresh download of OS Build 22631.6783.
By Daniel Okafor
Step-by-step fixes for Windows error codes, from Windows Update failures to activation and store errors.
The INACCESSIBLE_BOOT_DEVICE error (Stop error 7B) occurs when Windows loses access to its system partition during startup after installing an update. You can resolve this issue by booting into the Windows Recovery Environment (WinRE) using installation media to revert pending update actions with DISM, rebuild the boot configuration database, or repair damaged boot files.
By Daniel Okafor
Error 0x800f0922 (CBS_E_INSTALLERS_FAILED) occurs when Windows Update fails to complete an advanced installation task, often due to corrupted scheduled tasks or blocked staged update packages. You can fix this by running the built-in Windows Update troubleshooter, removing staged packages using DISM, or clearing corrupted Task Scheduler registry keys. Follow the ordered methods below to safely restore your system's update capability.
By Daniel Okafor
Third-party and Microsoft apps that stop opening, crash, or misbehave after a Windows update.
If your Start menu is not opening after installing a Windows update, the system process handling your taskbar and menu layout may have temporarily frozen. You can quickly fix this by restarting the Windows Explorer process or running the built-in system troubleshooters. If those steps do not resolve the issue, checking for pending update patches can restore normal menu functionality.
By Daniel Okafor
If sound is not working after a Windows 11 update, your primary audio device may have been muted or swapped during the installation. You can resolve this issue by selecting your correct output device in Quick Settings, running the automated audio troubleshooter, or reconnecting your Bluetooth audio hardware. Follow these step-by-step methods to restore sound on your PC.
By Daniel Okafor
Short guides to enable, disable, or configure new and changed Windows 11 features.
To uninstall a Windows 11 update, open Settings and navigate to Settings > Windows Update > Update history. Scroll down to select Uninstall updates, locate the update you wish to remove, and click Uninstall. If you encounter errors during removal, you can open the Get Help app or run the Windows Update troubleshooter.
By Priya Natarajan
To check your Windows 11 build on pre-release builds, look at the desktop watermark in the lower-right corner of your screen. You can also view your Windows core version, Insider channel, and build details by going to Settings > Windows Update > Windows Insider Program. For packaged applications, top-level version numbers can be checked directly in Settings > Apps > Installed apps.
By Priya Natarajan
To turn off Copilot in Windows 11, navigate to Settings > Personalization > Taskbar and toggle the Copilot switch to Off. Alternatively, system administrators can turn off the feature using Group Policy under administrative templates for Windows components. You can reverse these steps at any time to restore Copilot to your taskbar.
By Priya Natarajan
You can prevent Windows 11 from automatically restarting after updates by setting your active hours under Settings > Windows Update > Advanced options. Alternatively, you can enable the Group Policy setting titled No auto-restart with logged on users for scheduled automatic updates installations when Configure Automatic Updates is set to option 4.
By Priya Natarajan
What changed and what broke, on the day Microsoft ships it.
Every guide states the date it was checked and is re-checked when a new build ships; hands-on verification, with the build it was tested on, is added when available.
KB numbers, build numbers and error codes only ever come from Microsoft’s own pages, which every article links to.