
How to Enable Windows Defender After It Failed to Start
If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...
Software troubleshooting desk

If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...

If your Windows device keeps asking for the BitLocker recovery key after every reboot, the TPM (T...

When Windows reports 'Activation authentication failed,' it usually means the system couldn't ver...

You've configured Group Policy to enable Windows Defender, but it remains off or shows as managed...

When you try to activate Windows and see error 0x80070005 with the message “Access Denied,” it us...

You open the Microsoft Store, try to sign in, and get an authentication failed error. This can ha...