
Fix Windows Defender 504 Gateway Timeout & Permission Denied Errors
You open Windows Defender Security Center and see "504 Gateway Timeout" or "Permission Denied" er...
Software troubleshooting desk

You open Windows Defender Security Center and see "504 Gateway Timeout" or "Permission Denied" er...

You try to activate Windows and see error code 0x80070005 with a trailing 504. This usually means...

You try to download an app from the Microsoft Store, but instead of progress, you see a message a...

You open OneDrive and see a 'Connection refused' error. Your files aren't syncing, and the OneDri...

If Windows Defender or another security tool is acting up—showing stale alerts, failing to update...

You see error 504 when trying to activate Windows. The system says activation failed, and you're ...