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Microsoft Confirms Embarrassing Windows 11 Glitch: System Drive C Suddenly Inaccessible on Some Samsung PCs
17 hour ago /
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Author：小编
Microsoft has confirmed a vulnerability in the February 2026 Tuesday Patch Update KB5077181 for Windows 11, which may cause some computers to be unable to access the system drive C, displaying the error 'C: is not accessible – Access denied'. This update was intended to fix security vulnerabilities and graphics card-related issues, but some users have reported problems such as boot loops, system file corruption, and network and Bluetooth failures. Microsoft recommends affected users uninstall the patch in safe mode or wait for a subsequent fix update.
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