Fix 'Windows Defender Firewall Has Blocked' Error
You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...
Checklists for software errors, setup, and tool workflows.
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2. Isolate
3. Apply
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View listWindows Defender Not Working After Update: Checklist
After a Windows Update, Windows Defender (now called Microsoft Defender Antivirus) may stop worki...
Fix Windows Defender Service Not Starting (Error 0x80070422)
You try to start Windows Defender but get error 0x80070422: “The service cannot be started, eithe...
Fix Microsoft Store High CPU Usage & Permission Denied Errors
You launch the Microsoft Store and notice your CPU usage spikes, or you get a 'Permission Denied'...
Windows Security Real-Time Protection Slowing Down Your PC
If your computer feels sluggish, especially during file transfers or program launches, Windows Se...
Fix 'Windows License Expired' Error on Activated Systems
You see a watermark or notification saying your Windows license has expired, but when you check S...
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