Microsoft says it has resolved a Windows 11 bug that caused some commercial systems to fail to boot with an "UNMOUNTABLE_BOOT_VOLUME" error after installing recent ...

I've got an interesting problem... my laptop (running XP SP3) is giving me a BSOD while it's booting. The pertinent information from the BSO <BR><BR>UNMOUNTABLE_BOOT_VOLUME, STOP 0x000000ED ...

Use your windows cd to boot and run chkdsk. That's what I did when I had a comp with that problem. Worked without a problem.<BR><BR>Or you could always reformat. ••• Quote Report ...

The boot issue, which Microsoft previously investigated and linked to failed December 2025 updates, affected a limited number of commercial Windows 11 devices running versions 25H2 and 24H2.