
Enable Windows Defender After Disabling Third-Party Antivirus
If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...

If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...

You try to open a file and see a message like "The file is locked" or "Access denied." Sometimes ...

You open Task Manager and see Windows Security (the process is MsMpEng.exe) using 500 MB or more ...

After restoring your Windows PC from a backup or system image, you might notice that Microsoft St...

If PowerShell opens and immediately closes, or crashes repeatedly when you try to use it, you're ...

You may see an error like “Windows activation invalid configuration” or “License is corrupted” af...