How to Fix Windows Defender Blocked by Group Policy
When you try to open Windows Defender and see a message like "This app is blocked by group policy...
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All notesFix Windows Activation Blocked by Firewall
If Windows activation fails with an error about a blocked firewall, your PC likely can't reach Mi...
Fix OneDrive Sync Error 0x8004de40 – Authentication Failure
You're working on a file when OneDrive pops up an error: "Authentication failed – Error c...
Fix Windows Update 404 Not Found Error on Windows 10
When you run Windows Update and get a "404 Not Found" error, it usually means the update server c...
Fix Windows Update Error 0x800f081f with DISM Restore Health
If you see error 0x800f081f when running Windows Update or DISM, it usually means a system file i...
Fixing Windows Security 502 Bad Gateway Errors
If you see a 502 Bad Gateway error in Windows Security (or the Windows Defender portal), it usual...
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