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

UFW Allow Port Range Not Opening: Fixes and Checks

If you've added a UFW rule to allow a range of ports but connections are still being blocked, the...

How to Fix Windows Defender Not Starting Automatically

If Windows Defender (Microsoft Defender Antivirus) isn't starting automatically when you boot you...

Reset Windows Update Components Using Command Prompt

If Windows Update is stuck, showing errors like 0x80070002 or 0x80073712, or simply won't install...

Fix Chrome Profile Port Already Allocated Error

How to Fix Jupyter Notebook Token Authentication Error

When you start Jupyter Notebook, you might see a prompt asking for a token or password, or the br...

Fixing Microsoft Teams Dependency Conflicts

If Microsoft Teams fails to start, crashes, or shows errors after an update, a dependency conflic...