
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...

If you see an error message saying 'Windows Update module not found' or 'wuapi.dll is missing', W...

If you're seeing a 502 Bad Gateway error while setting up or using Windows Terminal, it usually m...

After a fresh Windows install, Windows Defender (now called Microsoft Defender Antivirus) is typi...

When Windows Update fails on a managed workstation, the first step is to isolate the cause. Use t...

You open Outlook and see the message: "Outlook service unavailable. Cannot start Microsoft Outloo...