Windows Defender Offline Scan Not Working: 7 Fixes to Try - Windows SSL Certificate Activation Error Solution-Windows License Backup Tool: Free Download & Guide
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.
Related Software Guides
Firefox Not Responding? Try Safe Mode Troubleshooting Steps
How to Fix 'Windows Update Cannot Connect to Internet' Error
Change Windows Security Log Location via Registry
How to Fix Windows Defender Greyed Out in Settings
How to Fix Windows Update Error 0x80070002
Windows Defender on Mac: Installation Checklist