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Windows 10 update created bug preventing file repair using SFC scan

windows 10 update prevent repair using sfc scan

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Users who have updated their Windows 10 system can no longer repair corrupted system files. The System File Checker (SFC) ‘s scannow function does not work properly, so people with problems cannot solve it.

Users who check if their system files are still intact with the sfc / scannow command cannot fix errors found. If the program finds corrupted system files, it displays the message: “Damaged files were found, but not all of them can be recovered. The details are included in CBS.Log % WinDir% \ Logs \ CBS \ CBS.log .”

The log file states that the hashes of the system files and their backups do not match, but if that is checked with the fsutil hardlink listcommand, the hashes turn out to be correct and the files are linked correctly.

The bug was discovered by a user on a security forum and has reported it to Microsoft and Bleepingcomputer. The problem seems to be not with the latest Windows update, but with the latest Windows Defender update (1,297,823.0).


There is no patch available yet, but users can fix the bug with the following commands:

  • DISM / Online / Cleanup-Image / CheckHealth
  • DISM / Online / Cleanup-Image / ScanHealth
  • DISM / Online / Cleanup-Image / RestoreHealth

It is not yet clear whether / when the bug will be patched.

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