Microsoft confirms Windows 11 bug crippling PCs and making drive C inaccessible

Microsoft confirms Windows 11 bug crippling PCs and making drive C inaccessible

By @TarasBuria
Publication Date: 2026-03-13 23:32:00

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Microsoft has just confirmed a Windows 11 bug where the system won’t let you access the system drive.

 

Microsoft has updated the official Windows 11 documentation with details about a newly discovered bug that may ruin your day if you have a certain PC and try to access the system drive C. According to Microsoft, installing the February 2026 Patch Tuesday update (KB5077181) could lead to the error “C:\is not accessible -…