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

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

When you try to connect to a remote computer via Remote Desktop, you might see an error like "The...

You open Microsoft Teams, but it stays on the spinning loading circle or a blank screen. This is ...

When you see an error like "Authentication failed" or "Logon failure: ac...

You want a program to launch automatically every time Windows starts. While the Startup folder wo...

When updating Windows Defender, you might see error 0x80240022. This usually means Windows Update...