
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...

When you click the Microsoft Store icon and nothing happens—no window, no error, just silence—it'...

Windows Security may stop working with a proxy error, often due to misconfigured proxy settings o...

When Windows Security (formerly Windows Defender) fails to start at boot, you may see an error li...

You run netsh int ip reset or netsh winsock reset to clear DNS settings...

If Outlook gets stuck on the "Loading" screen when you try to run the repair tool (SCANPST.EXE) f...