Published: Sep 30, 2024
Key Takeaways:
Microsoft is currently investigating an issue causing unexpected reboots and Blue Screens of Death (BSODs) on Windows 11 devices. The company detailed in a support document that the problem stems from the September optional update (KB5043145) affecting Windows 11 versions 22H2 and 23H2.
Several users on Reddit reported that the KB5043145 update causes some Windows 11 devices to get stuck in an endless reboot loop and automatically open the recovery screen. This update also blocks access to the Windows Subsystem for Linux 2 (WSL 2), though a Microsoft employee confirmed that this issue might be limited to specific CPUs.
“After installing this update, some customers have reported that their device restarts multiple times or becomes unresponsive with blue or green screens,” Microsoft explained. “According to the reports, some devices automatically open the Automatic Repair tool after repeated restart attempts. In some cases, BitLocker recovery can also be triggered.”
On the Feedback Hub, users reported that the KB5043145 update disrupted WLAN connections on their Windows 11 devices. Moreover, those who installed the patch found that their microphones and keyboards stopped working.
Microsoft released the optional KB5043145 patch for Windows 11 on September 26. This update brings some improvements to the Start menu, taskbar, and lock screen on Windows 11 PCs. Microsoft has also added the sign-out command to the account manager in the Start Menu.
Additionally, Microsoft notes that users will no longer need to enter their credentials in Microsoft Outlook and other encrypted email apps. This update should also fix a bug that was previously preventing Microsoft Edge from responding to requests to use Internet Explorer mode.
As of this writing, Microsoft has pulled back this problematic update and users can no longer install it. However, those who have already installed it can uninstall the update by going to Settings > Windows Update > Update history > Uninstall updates. Locate the KB5043145 patch, and then click Uninstall.