How to Fix Windows Defender Not Turning On
Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
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View listFix Windows Defender Path Not Found in Windows 10
When Windows Defender shows a 'path not found' error, it usually means the antivirus service can'...
Fix Task Scheduler Service Not Starting Automatically
You've set up a scheduled task, but it never runs. When you check the Task Scheduler service, it'...
How to Fix Windows Security Error 0x80070422
You open Windows Security and get error 0x80070422, or see a message that the app can't start. Th...
Windows Defender 502 Bad Gateway: Setup and Troubleshooting Guide
When setting up Windows Defender or updating its definitions, you might encounter a 502 B...
How to Fix Windows Defender Scanning Taking Too Long
If Windows Defender (Microsoft Defender Antivirus) scans are taking unusually long—sometimes hour...
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