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

Jupyter Kernel Not Starting: Quick Fixes

You open a notebook, try to run a cell, and the kernel dies or never connects. This is a common J...

UFW Allow Port Not Working After Reboot: Fixes That Actually Work

You added a UFW rule to allow a port, it works fine until you reboot, then the port is blocked ag...

Fix NVM Not Found in Git Bash on Windows

How to Fix Microsoft Teams Invalid Configuration Error

When you see an “invalid configuration” error in Microsoft Teams, the app usually fails to start ...

Fix Windows Security Module Service Not Running

You open Windows Security and see a message that the service isn't running. The shield icon in th...

Fix BitLocker Command Not Found in Windows 10

If you see 'bitlocker command not found' when running manage-bde or other BitLocker commands in W...