Users report that the latest Windows 11 update, KB5039212, is causing serious problems, including boot loops and system crashes. Here's what we know.

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 security updates, with the fix ...

The Windows-maker has been deluged with update problems as mandatory security fixes are pushed out to a billion-plus PC ...

This comes just hours after reports that another emergency update has been issued by Microsoft to affect other problems besetting users, specifically Outlook becoming “ unusable .” And it comes a week ...

Windows 11’s first big update of 2026 was supposed to harden security and smooth out rough edges. Instead, it has left some users staring at blank desktops, stalled shutdown screens, and boot loops ...