How to Fix Windows Defender Not Starting Automatically
If Windows Defender (Microsoft Defender Antivirus) isn't starting automatically when you boot you...
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1. Reproduce
2. Isolate
3. Apply
4. Verify
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View listHow to Reinstall the Windows Security App (Microsoft Defender)
If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...
Checklist for Fixing Windows Defender Command Not Found
When you run Get-MpComputerStatus or Start-MpScan and see "The ...
Fix Firefox Not Responding Due to High Memory Usage
If Firefox stops responding or your system slows down, high memory usage is often the cause. This...
How to Fix Windows Security Service Unavailable
When Windows Security shows "Service unavailable" or a red banner, your antivirus and firewall pr...
Fix OneDrive Not Syncing After Windows 11 Update
After a Windows 11 update, OneDrive may stop syncing files. This is usually due to changed settin...
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