KB5043145Catastrophic

BSOD reboot loop on boot

BootBSODSystem Stability

What broke

The September preview update caused some PCs to enter a Blue Screen of Death reboot loop, never successfully completing the boot process. Affected systems would BSOD, restart, BSOD again, in perpetuity. The only fix was booting into Safe Mode and uninstalling the update manually — assuming you knew how to get to Safe Mode on a modern PC that boots in 3 seconds.

Incident details

Update
KB5043145
Incident date
· Browse that year
Status
Fixed
Fix date
Page last updated
Severity
Catastrophic
Affected
Boot, BSOD, System Stability

Sources

  1. Microsoft Support: KB5043145

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