
Fix Microsoft Teams Modern Authentication Failure
When Microsoft Teams shows 'We couldn't sign you in' or 'unable to authenticate with modern authe...

When Microsoft Teams shows 'We couldn't sign you in' or 'unable to authenticate with modern authe...

You enter a valid Windows product key, but Windows says it's not accepted. This is frustrating, e...

You set the Windows Search service startup type to Automatic, but it still doesn't start automati...

If Windows Search is using 200-500 MB or more of RAM on your system, especially on a machine with...

After a Windows update, you might see an error that Windows Defender's security token has expired...

You open Windows Security and see a rate limit error — notifications stop, scans won't start, or ...