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

Fix Windows Activation Token Expired Without a Product Key

You might see a watermark saying your Windows activation has expired, even though you never enter...

Fix ERESOLVE Error in npm ci for Production Builds

When you run npm ci in a production environment and hit an ERESOLVE err...

How to Set Up Windows Security for Network Access

If you're having trouble accessing network resources—like shared folders, printers, or internet c...

Jupyter Kernel Connection Error: Causes and Fixes

You start a Jupyter notebook, try to run a cell, and see a message like "Kernel error" or "Connec...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Microsoft Store Blank Screen on Windows 11

If you open the Microsoft Store on Windows 11 and see nothing but a white or gray screen, the app...