Knowledge base for software setup, errors, and daily tool work.

Fix 'Windows Defender Firewall Has Blocked' Error

You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...

Checklist for Resolving Windows Security 504 Gateway Timeout

If you see a 504 Gateway Timeout error in Windows Security, it usually means the security service...

How to Fix BitLocker SSL Certificate Error

Symptoms

When you try to unlock a BitLocker-protected drive or enable BitLocker, you may ...

Fix BitLocker Auto Unlock Not Working After Update

After a Windows update, you might find that BitLocker auto unlock stops working on your external ...

How to Fix Microsoft Teams Invalid Configuration Error Code

If you see an “invalid configuration” error in Microsoft Teams, the app usually fails to sign in ...

How to Fix OBS Virtual Camera Not Showing Up

You've installed OBS Studio, set up your scenes, and want to use the virtual camera in Zoom, Disc...