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 Service Not Running
If the Windows Search bar is unresponsive, returns no results, or shows an error like "Windows Se...
How to Fix Windows Security Settings Not Saving Changes
You change a setting in Windows Security—like toggling real-time protection or adding an exclusio...
Fix Windows Terminal Connection Refused (Error 0x80072746)
When Windows Terminal shows "Connection refused" with error code 0x80072746, it usually means the...
Fix Windows Defender File Locked During Scan
You run a Windows Defender scan and it reports that a file is locked and can't be scanned. This i...
Fix Windows Activation Delay After Hardware Change
After changing your motherboard, CPU, or other major hardware, Windows may not activate immediate...
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