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

Fix 'Windows Security Authentication Failed' for Domain Credentials

Fixing Microsoft Teams 'Access Denied' on Login

When you try to sign into Microsoft Teams and see an 'Access Denied' error, it usually means some...

How to Reinstall the Windows Security App (Microsoft Defender)

If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...

Fix Outlook SSL Certificate Error 0x80048820

You try to connect Outlook to your email server and see error 0x80048820. The full message often ...

Fix OBS Black Screen After Game Capture Setup

You set up a game capture source in OBS Studio, but the preview shows a black screen. The game ru...

Fix 502 Bad Gateway in Windows Terminal WSL

If you see a "502 Bad Gateway" error in Windows Terminal while running WSL, it usually means the ...