
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...

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

You open Outlook for Mac, and it sits on the loading profile screen for minutes—or indefinitely. ...

When running PowerShell scripts that make HTTP requests through IIS, you may encounter a 504 Gate...

You try to activate Windows, but get an error saying the activation file is locked or the registr...

When the Microsoft Store refuses to open—either it crashes on launch, hangs on a blank screen, or...

Windows Security (formerly Windows Defender) is the built-in antivirus in Windows 10 and 11. For ...