Fix Windows Update Error 0x80070020: File Locked
You try to install Windows updates but get error 0x80070020. This usually means another program o...
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View listWindows Defender High Memory Usage Troubleshooting Checklist
Windows Defender (Microsoft Defender Antivirus) sometimes uses more memory than expected, especia...
Enable Windows Security Manually When It Fails to Start
If Windows Security (formerly Windows Defender) fails to start, you may see an error like "This a...
Fix Windows Defender Blocked by Group Policy Permission Denied
You try to open Windows Defender Security Center or run a scan, but get an error: "Windows Defend...
Fix 'Port Already Allocated' Error After Windows Update
After a recent Windows update, you might see an error like 'port already allocated' when starting...
How to Fix Windows Activation Stuck on Sign-In Screen
If you're stuck at the Windows sign-in screen with an activation prompt that won't go away, you'r...
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