
Fix Windows Defender High Memory Usage in Windows 11
You open Task Manager and see Windows Defender (Microsoft Defender Antivirus) using 500 MB or mor...

You open Task Manager and see Windows Defender (Microsoft Defender Antivirus) using 500 MB or mor...

If you see a proxy error in Windows Defender—often something like "Your IT administrator has limi...

You open PowerShell and see an error like Invalid configuration module or Modu...

When you try to back up files using Windows Security (Windows Defender) or the built-in backup to...

If you see a message that your Windows activation token has expired, the system may refuse to act...

You see "Access Denied" when OneDrive tries to sync a file. The error can stop sync for that file...