
Windows Defender 502 Bad Gateway: Troubleshooting Checklist
If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...
Software troubleshooting desk

If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...

After a Windows Update, you might see a network error in Windows Defender, often with a message l...

You might see a "permission denied" error when BitLocker tries to validate an SSL certificate for...

You open Outlook and see an error about a dependency conflict—maybe a missing DLL or a version mi...

If you see error 0x803fa067 when trying to activate Windows 11, the activation process is failing...

You're trying to connect to a remote Windows machine, but get an error: "This computer ca...