
Windows Defender Authentication Failed: Step-by-Step Checklist
You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...

You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...

If you see an error like "Your token has expired" or "Authentication needed" in Microsoft Teams, ...

When launching Windows Terminal, you may see an error like "Module not found" with code 0x8007000...

You try to install or update a Microsoft Teams app or custom bot, and get an error like 'dependen...

If you see error code 0x80070005 when trying to use Windows Terminal on a Mac (via virtualization...

When you open Windows Security (formerly Windows Defender Security Center) and see an error like ...