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

Fix OBS Studio Black Screen on Windows 10

If OBS Studio shows a black screen when capturing your desktop or a specific window on Windows 10...

How to Clear Windows Security Cache: A Practical Guide

If Windows Defender or another security tool is acting up—showing stale alerts, failing to update...

Jupyter Kernel Not Starting After Update: Fixes

After updating Jupyter or its dependencies, you might see the kernel die immediately or hang with...

Fix Windows Terminal Token Expired After Update

After a Windows Terminal update, you might see errors like “token expired” or “authentication fai...

Fix Windows Activation Connection Refused After Update

After a Windows update, you might see an error that activation servers can't be reached—often phr...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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