The issue you're experiencing with specific files showing an "Access Denied" error, despite having verified permissions and ownership, may indeed be related to file system corruption or damaged ACLs. Since you've already performed several troubleshooting steps, here are some additional considerations:
- CHKDSK Results: After running
chkdsk, review the results for any indications of file system corruption or bad sectors. Ifchkdskreports that it found and fixed errors, this could resolve the access issues. If it finds bad sectors, it may indicate that the disk is failing. - File System Corruption: If the files are still inaccessible after running
chkdsk, you might want to consider using theSFC /scannowcommand to check for and repair corrupted system files that could be affecting file access. - Data Recovery Tools: If the files are still not accessible, you may need to use third-party data recovery tools to attempt to recover the affected files. Tools like Recuva, EaseUS Data Recovery Wizard, or Stellar Data Recovery can be helpful in such scenarios.
- Backup Restoration: If you have backups of the files, consider restoring them from a backup if recovery attempts fail.
- Contact Microsoft Support: If the issue persists and the files are critical, reaching out to Microsoft Product Support Services may provide additional assistance, especially if the files are unrecoverable and you need professional help.
It's essential to ensure that you have backups of important data before performing extensive recovery operations to prevent further data loss.