
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're migrating an Outlook profile or exporting a PST file, and it hangs at 99% for minutes or h...

You updated Windows, and now your System Restore points are gone. This is a known issue after maj...

You type a command in Command Prompt and get '...' is not recognized as an internal or exte...

You click 'Install updates', wait for the progress bar, and then see the dreaded message: 'Undoin...

You open Windows Security, try to run a scan, or enable real-time protection, and get a message l...