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

Jupyter Kernel Stuck on Connecting: Practical Fixes

You launch a notebook, but the kernel indicator stays gray or shows “connecting” for minutes. Thi...

Fix Remote Desktop Version Mismatch on Windows 7

When connecting to a remote computer via Remote Desktop, you may see an error like "The remote co...

Fix Windows Security Authentication Error 0x80070035

How to Set Command Prompt as Default Terminal in Windows 11

Windows 11 ships with Windows Terminal as the default terminal app. If you prefer the classic Com...

Fix Task Scheduler Service Not Starting Automatically

You've set up a scheduled task, but it never runs. When you check the Task Scheduler service, it'...