
Fix Windows Defender High CPU Usage on Windows 11
If you notice your Windows 11 system slowing down and Task Manager shows Microsoft Defender Antiv...

If you notice your Windows 11 system slowing down and Task Manager shows Microsoft Defender Antiv...

You open Microsoft Store and see an SSL certificate error—maybe “ERR_CERT_AUTHORITY_INVALID” or a...

If you notice that Windows Security (formerly Windows Defender) isn't starting automatically with...

If you see a notification that the Windows Security service has stopped working, your antivirus o...

If the Microsoft Store isn't loading, won't download apps, or throws errors like 0x80131500, a se...

When launching Microsoft Teams, you might see an error about the path not being found in the regi...