Microsoft's Mandatory January Security Update Causes 'Black Screen of Death' Issues for Windows Users

Kathmandu. Microsoft's mandatory security update released for Windows users in January has become a headache. In the latest versions of Windows 11, installing this update has caused the 'Black Screen of Death' (BSOD) issue, where the computer suddenly stops working and the screen turns completely black. 

Many PC users worldwide have been affected by this software glitch. According to Microsoft, this problem is particularly visible among users running Windows 11 versions 24H2 and 25H2. After the update, the system crashes upon startup, displaying the error code 'UNMOUNTABLE_BOOT_VOLUME'. 

Since this is a mandatory update, it is installing automatically on most computers, and although it claims to fix hundreds of security vulnerabilities, it has currently halted users' work.

This error code usually appears when system files are corrupted or there is a hardware problem. Affected devices show a message saying, 'Your device ran into a problem and needs to restart,' but the computer does not boot even after restarting. 

Although Microsoft stated that this issue is only affecting a limited number of users, it has not yet released exact figures on how many people are impacted. 

According to experts, attempting Windows Recovery can resolve this issue. If recovery fails, Windows must be reinstalled in a new manner. 

The recent few weeks have not been favorable for Microsoft. Previously, the company had to issue emergency updates after Outlook email stopped working and remote login issues occurred.