
How to Fix Windows Defender Connection Refused Error
If you see a 'connection refused' message when opening Windows Defender or updating virus definit...
Software troubleshooting desk

If you see a 'connection refused' message when opening Windows Defender or updating virus definit...

When Windows Security (Windows Defender) reports a 504 Gateway Timeout error through a proxy, it ...

If Windows Update fails to run or you see an error like "Windows Update cannot check for updates"...

If Windows Search stops working and you see an SSL certificate error in the event logs or search ...

After a Windows update, you might see SSL certificate errors in Windows Defender or other applica...

When you see error 0x80070020 in Task Scheduler with the message "port already in use," it usuall...