
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...

You're trying to unlock a BitLocker-encrypted drive, but you get an "Access Denied" error. This u...

You open Chrome and get nothing but a white screen. The browser window is there, but no content l...

If PowerShell won't open on Windows 10—no window appears, it flashes and closes, or you get an er...

After a Windows update, you might type in the Start menu or taskbar search and see no results—or ...

If you notice that Windows Security isn't opening automatically when you start Windows 11, or if ...