
Fix Windows Defender Authentication Failed After Update
After a recent Windows update, you might see an error like "Authentication failed" when trying to...
Software troubleshooting desk

After a recent Windows update, you might see an error like "Authentication failed" when trying to...

You see "BitLocker service unavailable" when trying to manage encryption. This usually means the ...

If you changed your Windows password and now scheduled tasks fail to run or get stuck in a login ...

If Windows security features aren't working as expected—like Windows Defender won't start, update...

If you see errors like 'We need to refresh your credentials' or 'Something went wrong' when openi...

If you rely on Outlook opening as soon as you log into Windows 7, having it fail to auto-start ca...