Microsoft Issues Urgent Security Alert for Windows Users
Microsoft has issued an urgent security alert for Windows users regarding significant issues caused by recent updates. The company confirmed that several PCs have abruptly crashed into a critical state, known as the “Black Screen of Death” (BSOD), particularly after the January mandatory security update.
Current Situation of Windows Users
The crashes are the result of devices that were not properly updated in December 2025. Microsoft indicated that if these devices remained in an improper state during subsequent update attempts, they could fail to boot entirely. This alarming scenario has impacted primarily commercial PC users, leaving most home users unaffected.
Understanding the Issue
- Impact: Devices failing to install the December 2025 security update.
- Error: Black Screen of Death (BSOD) appears, displaying UNMOUNTABLE_BOOT_VOLUME.
- Affected Versions: PCs running Windows 11 KB5074109 (25H2 Build 26200.7623 and 24H2 Build 26100.7623).
According to Microsoft, a partial resolution is underway to prevent additional failures in devices attempting updates while in an improper state. However, this will not prevent devices from becoming improperly configured initially, nor will it restore those already unable to boot.
Recovery Steps for Affected Users
For users facing boot issues, recovery is challenging. Affected devices require manual intervention to access the Windows Recovery Environment (WinRE). Once there, users can employ available methods to recover their systems.
Looking Forward
January has been a tumultuous month for Windows users, riddled with emergency patches, warning notices to uninstall updates, and even outages affecting Outlook. Microsoft is hopeful that February will bring improved stability and fewer issues for its users.
For the most up-to-date information and guidance, Windows users are encouraged to stay connected with Filmogaz.com.
