Windows Security Not Scanning for Viruses: How to Fix
If Windows Security (formerly Windows Defender) is not scanning for viruses, you may see an error...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
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View listHow to Repair a Corrupted Windows Security Log
If you see errors like "The security log is corrupted" or Event ID 1104 in the System log, Window...
Fix Task Scheduler Error 0x80070020: Port Already in Use
When you see error 0x80070020 in Task Scheduler with the message "port already in use," it usuall...
Fix Windows Security Authentication Failed Smart Card Not Working
You insert your smart card, enter your PIN, and Windows Security reports “Authentication failed.”...
How to Fix Windows Security Error 0x80073b01
You may see error 0x80073b01 when opening Windows Security or trying to use its features. It usua...
How to Fix Command Prompt Run as Administrator Not Working
You right-click Command Prompt and select 'Run as administrator', but nothing happens, or it open...
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