Windows Security Troubleshooting Guide
Windows Security (formerly Windows Defender) usually runs quietly in the background, but sometime...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Search Indexing Turned Off Error
If you search for a file or email and get no results, or the search box says "Indexing is turned ...
Fix Windows Activation Backup Restore Permission Denied Error
When you try to restore a Windows activation backup—often from a saved Tokens.dat or...
Fix Chrome Profile Service Unavailable on Windows 10
When you see 'Profile Service Unavailable' in Chrome on Windows 10, Chrome can't load your profil...
How to Fix Windows Security Connection Refused Error
You open Windows Security and see a "Connection refused" error when trying to update virus defini...
Enable Windows Search Service: Configuration Guide
If Windows Search stops working, files don't appear in search results, or the search box shows no...
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