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

Configure Proxy Settings in Windows Terminal

If you use Windows Terminal behind a corporate proxy or a local proxy tool, you may notice that s...

Fix VirtualBox Kernel Driver Permission Denied on Linux

Fix Jupyter Notebook Token Expired or Invalid Error

When you try to open Jupyter Notebook and see “token expired” or “invalid token,” it usually mean...

How to Fix Cloudflare DNS Not Resolving Error 1016

If you're seeing error 1016 when trying to reach a site behind Cloudflare, it means the DNS looku...

Check If Your Windows License Is Retail or OEM

If you're troubleshooting activation issues or planning to transfer Windows to a new computer, kn...

Fix Windows Update Version Mismatch Not Working

You try to install a Windows update but get a version mismatch error. The update fails, and you'r...