
Windows Defender Service Troubleshooting Checklist
If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...
Software troubleshooting desk

If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

After a Windows update, you may find that your carefully configured BitLocker settings no longer ...

You open Chrome on your Windows 10 PC and get an error saying "Profile authentication failed." Th...

When you see "port already allocated" during Windows Update, it usually means an...

You're trying to activate Windows 10, but you see an error like 'Access Denied' or 'Permission De...

Windows Search can slow down or stop returning results when its service or index gets corrupted. ...