Microsoft Windows 11 Update KB5043145 Causes Major System Issues

The recent optional update leads to reboot loops, blue and green screen errors, and BitLocker recovery triggers.

The KB5043145 update for Windows 11, released in late September 2024, has caused significant problems for users, including multiple reboots and system freezes.
Affected devices may enter a reboot loop, display blue or green screens of death, or trigger the Windows Automatic Repair tool and BitLocker recovery.
Microsoft has paused the rollout of the update and issued a Known Issue Rollback (KIR) to mitigate the problems on impacted systems.
The issues extend to USB and Bluetooth device failures, as well as disruptions to keyboard, mouse, Wi-Fi, and Windows Subsystem for Linux 2 functionality.
Microsoft is investigating the root cause and advises users to uninstall the update or use the KIR workaround until a permanent fix is available.