
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 click 'Check for updates' and get hit with 'Permission Denied' or 'Access Denied' – a common ...

If you're running Windows on a Mac via Boot Camp or a virtual machine (like Parallels Desktop or ...

You open Chrome, and your CPU spikes to 100%. Or you get a 'Permission Denied' error when trying ...

You click the Command Prompt shortcut or type cmd in the Run dialog, but nothing hap...

If you see error 0x80004005 when searching in Windows, it usually means the search index configur...