Repair Windows Security Installation via Command Prompt
Windows Security (formerly Windows Defender) can sometimes fail to open, show blank screens, or r...
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All notesFix Chrome Profile Authentication Failed on Windows 10
You open Chrome on your Windows 10 PC and get an error saying "Profile authentication failed." Th...
Fix Windows Search Invalid Configuration Registry Error
If Windows Search stops working and you see an error about invalid configuration in the registry,...
Fix Windows Defender Real-Time Protection Grayed Out
You open Windows Security, go to Virus & threat protection, and see that the Real-time protection...
Fix Windows Defender Network Connection Issues
If Windows Defender shows "can't connect to the network" or similar errors, it usually means the ...
Fix Windows Security Connection Refused Due to Firewall Settings
When Windows Security shows a 'connection refused' error, it often means the Windows Defender Fir...
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