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

Fix Jupyter Notebook Token Not Working on Localhost

If you see a token prompt when opening Jupyter Notebook on localhost, and entering the token fail...

How to Disable Windows Defender Real-Time Protection for Performance

If your system feels sluggish during file operations or while running resource-intensive applicat...

How to Enable UFW for a Specific IP Address

You have a Linux server with UFW (Uncomplicated Firewall) enabled, and you need to allow or block...

Fix 'Chrome Profile Path Not Found' or 'Missing Profile' Error

Fix Chrome Profile File Locked by Another User

If Chrome shows "Your profile could not be opened correctly" or "The profile appears to be in use...

Fix Chrome Extension Access Denied Due to Sync Issue

You try to open a Chrome extension and get an 'access denied' or 'permission denied' error. Often...