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

Windows Defender Authentication Failed: Step-by-Step Checklist

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

Fix Microsoft Teams Error Code Permission Denied

When Microsoft Teams shows a permission denied error, you usually can't sign in, ins...

Fix Command Prompt High CPU Usage Caused by Windows Update

You open Task Manager and see Command Prompt (cmd.exe) using a lot of CPU – sometimes 30% or more...

How to Fix OBS Black Screen on Mac

If you see a black screen in OBS when trying to capture your display or a specific window on Mac,...

Fixing Microsoft Teams Rate Limit Error When Sending Messages

Fixing pnpm Store Permission Errors in CI/CD Pipelines

You see pnpm store permission denied in your CI/CD logs. The pipeline fails when pnp...