Checklists for software errors, setup, and tool workflows.

Fix Remote Desktop Error Code 0x4 on Mac

You try to connect to a Windows PC from your Mac using Microsoft Remote Desktop, but the connecti...

Fix Windows Security Service Failing to Start on Startup

If Windows Security (Windows Defender) fails to start when you boot your PC, you may see a warnin...

Fix Jupyter Notebook Token Not Working on Windows

When you start Jupyter Notebook (or JupyterLab) on Windows, it often opens a browser tab asking f...

Fix OneDrive Sync Module Not Working on Windows 10

If you see “OneDrive sync module not working” on Windows 10, the OneDrive app may be stuck, not s...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix OBS Virtual Camera Not Working After Update

After updating OBS Studio, the virtual camera output may stop working in Zoom, Discord, or other ...