KB5077181
Microsoft: Windows 11 users can’t access C: drive on some Samsung PCs
Microsoft is investigating a new issue affecting some Samsung laptops running Windows 11 after installing the February 2026 security updates, in which users lose access to their C:\ drive and are unable to launch applications. The company says it is working with Samsung to determine whether the problem is related to the Windows updates or […]
Windows 11 KB5077181 fixes boot failures linked to failed updates
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 delivered in the February 2026 Patch Tuesday update. The boot issue, which Microsoft previously investigated and linked to failed December 2025 updates, affected a limited number of […]
Windows 11 KB5077181 & KB5075941 cumulative updates released
Microsoft has released Windows 11 KB5077181 and KB5075941 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features. Today’s updates are mandatory as they contain the February 2026 Patch Tuesday security patches for vulnerabilities discovered in previous months. You can install today’s update by going to Start > Settings > Windows Update and clicking on ‘Check for Updates.’ You can also manually download and install […]