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...
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Browse labWindows Defender Network Error Permission Denied Fix
You see 'Network error: Permission denied' when trying to update or run Windows Defender. This us...
Fix Windows Defender Not Opening Error 404
You try to open Windows Defender and get an error 404 – the page or resource can't be found. This...
Windows Security App Not Working After Update: Fixes
After a Windows update, the Windows Security app may fail to open, show a blank screen, or displa...
How to Fix Windows Update Error 0x80070643
When Windows Update fails with error 0x80070643, the update usually stops at a certain percentage...
Fix Windows Defender Port Already Allocated in Windows 11
You start a program that needs a specific network port, but Windows 11 tells you the port is alre...