
Fix Windows Defender High CPU Usage When Scan Stuck
If Windows Defender is using nearly 100% CPU and a scan appears stuck (e.g., progress bar frozen ...

If Windows Defender is using nearly 100% CPU and a scan appears stuck (e.g., progress bar frozen ...

You're trying to activate Windows, but the activation screen just keeps spinning or says "Loading...

You open Windows Security and see the message 'Windows Defender service unavailable' or 'Windows ...

If you see "port already allocated" when trying to run Windows Defender from the command line, it...

You open Settings > Update & Security, and everything under Windows Update is greyed out. Buttons...

You open Microsoft Store, see an update pending, and it either doesn't move or crawls. This is co...