Fix Windows Security Virus Scan Stuck at 99% - Resolve DNS Error in Windows Security-How to Repair Corrupted Windows System Files Using SFC and DISM

Updated 2026-06-13 18:49:13office-tools
Fix Windows Security Virus Scan Stuck at 99% - Resolve DNS Error in Windows Security-How to Repair Corrupted Windows System Files Using SFC and DISM
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.