
Fix Windows Defender Real-Time Protection Authentication Failed
When you try to turn on Windows Defender real-time protection, you might see an error saying some...
Software troubleshooting desk

When you try to turn on Windows Defender real-time protection, you might see an error saying some...

You click 'Check for updates' and see 'Access Denied' or 'Error 0x80070005'. This usually means W...

If you've reset your Task Scheduler settings—either intentionally or after a system restore—you m...

You open Task Manager and see Windows Security (or Antimalware Service Executable) using 500 MB o...

When Outlook fails to connect and displays proxy-related errors, the issue is often not with the ...

When you try to install an app from the Microsoft Store and get a 'permission denied' error, it u...