Latest Windows 11 Optional Update is Causing Unexpected Reboots and BSODs

If you’ve been waiting to install the September optional update for Windows 11 versions 22H2 and 23H2 (KB5043145), you may be well advised to skip it. The company acknowledged a known issue that’s causing some customers to experience unexpected reboots and BSODs (via Bleeping Computer).

“After installing this update, some customers have reported that their device restarts multiple times or becomes unresponsive with blue or green screens,” the company 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.”

This optional KB5043145 patch was released on Thursday, September 26, and it brought minor improvements to the Start Menu, the Lock screen and other features. Microsoft usually releases optional updates for Windows 11 and Windows 10 in the last week of the current month to preview new features and bug fixes coming in the next “Patch Tuesday” update for the following month.

Anyway, it’s not the first time Microsoft releases a buggy update, and there’s a good reason why these optional patches come with a “preview” label. Microsoft said that it’s currently investigating these reboot and BSOD issues, and the company will provide an update when it has more information. In the meantime, affected users may want try uninstalling this optional patch.