Checked against Microsoft's release notes; hands-on verification added when available.
KB5093998 is a mandatory cumulative security update released on June 9, 2026, for devices running Windows 11, version 23H2. It updates the operating system to OS Build 22631.7219 and includes critical security patches, core maintenance fixes, and servicing stack enhancements. You can install it automatically via Windows Update or download it manually from the Microsoft Update Catalog.
Maya Reyes
Daniel Okafor
Maya Reyes
Daniel Okafor
Daniel Okafor
Priya Natarajan
Maya Reyes
Maya Reyes
Priya Natarajan
Maya Reyes
What's new in each Windows 11 cumulative update and feature release: what changed, what to expect, and whether to install it.
KB5093998 is a mandatory cumulative security update released on June 9, 2026, for devices running Windows 11, version 23H2. It updates the operating system to OS Build 22631.7219 and includes critical security patches, core maintenance fixes, and servicing stack enhancements. You can install it automatically via Windows Update or download it manually from the Microsoft Update Catalog.
By Maya Reyes
KB5089570 is an optional preview update released on May 26, 2026, for devices running Windows 11, version 26H1. It advances your operating system build to OS Build 28000.2179 and includes non-security quality fixes and system improvements. Because this is an optional preview update, installation is completely voluntary.
By Maya Reyes
The latest Windows 11 Insider preview builds introduce practical enhancements to daily navigation, search efficiency, and hardware controls. Key additions include a WinUI 3-based Windows Search interface with inline quick actions, precision touchpad single-finger edge scrolling, Copilot key remapping, and an all-in-one Battery Status widget. These updates are currently previewing across the Experimental, Beta, and Release Preview channels.
By Priya Natarajan
KB5089548 is a mandatory security update released on May 12, 2026, for devices running Windows 11, version 26H1, advancing the system to OS build 28000.2113. It includes core operating system security patches, system maintenance fixes, and servicing stack updates. Devices can receive it automatically via Windows Update or manually from the Microsoft Update Catalog.
By Maya Reyes
Fixes for updates that won't install, get stuck, roll back, or break something after installing.
If KB5093998 fails to install or gets stuck during the download process on Windows 11, running the Windows Update troubleshooter or clearing the update cache usually resolves the issue. Restarting essential update background services and running system file repair tools will fix corrupted components preventing the installation. If automatic updates continue to hang, you can manually install the standalone package for OS Build 22631.7219.
By Daniel Okafor
If KB5089570 fails to install or gets stuck during update, it is usually caused by corrupted cache files or background update service hangs on Windows 11 version 26H1. You can resolve this issue by running the Windows Update troubleshooter, restarting core update services, or clearing the SoftwareDistribution folder. These steps clear temporary download glitches and allow Build 28000.2179 to complete installation.
By Daniel Okafor
If KB5089573 fails to install or gets stuck during download on Windows 11, running the Windows Update troubleshooter or clearing the cached update files usually solves the problem. Restarting core background update services can also clear hung installations. Because KB5089573 is an optional preview update, you can also safely skip it until the next mandatory cumulative update.
By Daniel Okafor
If KB5089548 is stuck downloading or fails to install on Windows 11, run the built-in Windows Update troubleshooter under Settings > System > Troubleshoot. If that does not resolve the issue, restart the Windows Update services and clear the SoftwareDistribution cache folder before checking for updates again.
By Daniel Okafor
Step-by-step fixes for Windows error codes, from Windows Update failures to activation and store errors.
Windows Update error 0x80070002 occurs when updates fail due to missing or corrupted system files, missing folders, or invalid registry service entries. You can resolve this issue by restoring missing directory paths, deleting orphaned .NET optimization registry keys, or using DISM alongside manually restored assembly files. Importing missing driver registry entries from a working machine also fixes recurring cumulative update rollbacks.
By Daniel Okafor
Error 0x800f0922 occurs when Windows Update fails to register required components due to staged update packages or a corrupted SecureBootEncodeUEFI scheduled task. You can resolve it by using DISM to remove staged update packages and clearing the corrupted task entries from the Windows Registry. Once these corruptions are cleared, restart your device and run Windows Update again.
By Daniel Okafor
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 Outlook is not opening or responding properly after a Windows 11 update, a disabled or misconfigured Teams Meeting add-in is often the root cause. You can resolve this issue by re-enabling the add-in in Outlook Options or adjusting its LoadBehavior setting in the Windows Registry. If you recently upgraded to the new Microsoft Teams, running the dedicated cleanup PowerShell script will restore add-in functionality.
By Daniel Okafor
If Microsoft Teams or Outlook fails to launch after installing a Windows update, installing update KB5124008 or out-of-band update KB5129195 resolves a known issue on ARM-based devices. You can also re-register the Teams Addin Loader DLL file or re-enable the Teams Meeting add-in inside Outlook settings. If you recently upgraded to the new Teams app, running Microsoft's TMA cleanup script in PowerShell reinstalls the required files.
By Daniel Okafor
If Google Chrome starts crashing immediately after installing a Windows 11 update, background system tasks or corrupted temporary files are usually interfering with the browser. You can quickly fix this by ending frozen Chrome processes in Task Manager, using the built-in Get Help diagnostic app, or reinstalling the browser. If the crashes persist, rolling back the recent update in Windows Settings will restore browser stability.
By Daniel Okafor
When Discord fails to open after a Windows update, the issue is typically caused by corrupted temporary files, system resource limits, or background process conflicts introduced during the update. You can quickly fix this by clearing temporary system files, running automated diagnostic tools via the Get Help app, or evaluating system health with the PC Health Check app. If the app still will not launch, performing a clean reinstallation of Windows will restore system stability.
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.