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

How to Handle '404 Not Found' Errors in PowerShell

When you get a '404 Not Found' error in PowerShell while using Invoke-WebRequest or ...

How to Enable Windows Defender on Windows 11

If you've noticed Windows Security is off or grayed out, you may need to re-enable Windows Defend...

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 Microsoft Teams Port Already Allocated on Windows 10

When launching Microsoft Teams on Windows 10, you may see an error stating that a port is already...

Fix VirtualBox Kernel Driver Permission Denied on Linux

Fix Remote Desktop High CPU Usage Caused by Antivirus

You're connected to a remote desktop and the session becomes sluggish. Task Manager shows high CP...