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

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

You open Chrome and get a message that a file is locked by User Account Control (UAC). This usual...

When you see 'invalid configuration' in Command Prompt, it usually means something in the environ...

If you're using the Microsoft Store on a Mac (via the web or through Office apps), you may run in...

You installed a Chrome extension, but its icon isn't showing up in the toolbar. This is frustrati...

If Windows Defender is disabled and you suspect a Group Policy setting is the cause, you may see ...