
Fix Windows Defender Access Denied in Safe Mode
You may see an 'Access Denied' error when trying to open Windows Defender in Safe Mode. This typi...
Software troubleshooting desk

You may see an 'Access Denied' error when trying to open Windows Defender in Safe Mode. This typi...

If Windows Defender won’t open—whether it crashes, shows a blank window, or does nothing when you...

If you're using Windows Terminal and seeing a 'token expired' error when trying to authenticate o...

If you're stuck in a Windows Security login loop—where you enter your credentials only to be prom...

After a Windows update, some users see a BitLocker prompt that says authentication failed. The sy...

When activating Windows, you might see error 0x8007232b with the message “DNS name does not exist...