Some Windows 11 computers are experiencing significant issues after installing the optional KB5043145 update on Windows 11, forcing Microsoft to distribute a Known Issue Rollback (KIR) fix. Affected PCs experienced multiple reboots and BSODs after installing the errant non-security preview Windows update, causing a few computers to run the Automatic Repair tool. A few cases also triggered BitLocker recovery, adding headaches for many users.
Microsoft says that the KIR is deployed automatically for most consumers, so they don’t have to do anything but restart their PC. Although they may have to wait 24 hours after Microsoft announces the fix before it reaches their computer, it should already be available to all systems at the time of writing. Conversely, managed system users must work with their IT departments to have their administrators deploy the special Group Policy that Microsoft released to fix the issue.
