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

Fix Windows Activation Server Not Available Error

When you see the message "Windows activation server is not available" while trying to activate Wi...

Why Chrome Says Token Expired and How to Fix It

If you're seeing "token expired" in Chrome, it usually means a website can't verify your session....

Fix Windows Terminal High CPU Usage & Permission Denied Errors

You open Windows Terminal and notice the fan spinning up, Task Manager shows 30–50% CPU from Wind...

Fix Windows Defender Stuck Loading Service Not Running

If you open Windows Security and see 'Windows Defender Service not running' or it hangs on a load...

How to Fix Chrome SSL Certificate Error After Update

Jupyter Notebook Token Not Working? How to Reset Password

You start Jupyter Notebook, see the token prompt, paste the token from the terminal, but it fails...