Fix Windows Defender Real-Time Protection Greyed Out
You open Windows Security, go to Virus & threat protection, and see that the Real-time protection...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Bypass Windows Activation Rate Limit Error
When you see "The activation server reported that the product key has been used too many times" o...
Fix Task Scheduler Cache Error 0x80070057
When you try to create or modify a scheduled task in Windows, you may encounter error 0x8...
Fix OneDrive Permission Denied Sync Errors
You see a red circle with a white cross on your OneDrive icon, and hovering over it shows "Permis...
Fix Windows Security Sync Issues Between Devices
You set up Windows Security on one device—enabled tamper protection, added exclusions, configured...
Fix Windows Defender Service Not Starting (Error 404)
If you see error 404 when trying to start Windows Defender, it usually means the service executab...
Topic paths
Quick titles
How to Resolve Windows Activation Error 0x8007007bRunner Not Connecting to GitHub Actions: Common FixesWindows Update Stuck on Checking for Updates? Fix ItWindows Update Cleanup Tool Not Removing Files: FixesTroubleshoot Windows Search with External StorageMicrosoft Store 502 Error Troubleshooting StepsHow to Resolve Teams Black Camera IssueFix 'Outlook Module Not Found' Registry Error