A critical Windows 11 bug has locked some users out of the C: drive

We've got another significant Windows 11 bug to report, which seems to be mostly impacting Samsung laptops.
XDA Developers on MSN

A nasty Windows 11 bug is causing the C drive to become inaccessible in select devices, says Microsoft

There is a custom fix, but it's probably best to wait.
Windows Report

Microsoft Confirms Windows 11 Bug That Locks Users Out of the C: Drive

Microsoft has confirmed a Windows 11 bug that can block access to the system drive after installing the February 2026 Patch Tuesday update KB5077181. The issue appears mainly on Samsung laptops and ...

Locked out of C drive on your Windows PC? Microsoft outlines fix for Samsung app bug

Microsoft has pulled a faulty Samsung app after it locked some Windows 11 users out of their C drive. The company has now shared recovery steps to restore access and fix affected systems.
Tbreak

Samsung laptops hit by Windows 11 C:\ drive access error after February updates

Windows 11 February updates are breaking Samsung Galaxy Book 4 laptops, blocking access to the C:/ drive and preventing apps from launching. Microsoft warns against risky workarounds while ...

Microsoft pulls Samsung app blocking Windows C: drive from Store

Microsoft has removed the Samsung Galaxy Connect app from the Microsoft Store because it was causing issues on specific Samsung Galaxy Book 4 and desktop models running Windows 11.