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

Jupyter Kernel Dead: Common Causes and Fixes

You're working in a Jupyter notebook, and suddenly the kernel dies. The notebook becomes unrespon...

Stop Windows Search Service to Free Up a Port

You might need to stop Windows Search if it's holding port 10243 or another port you need for dev...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

After installing or updating Microsoft Office, Outlook may open ...

How to Fix Windows Security Not Loading

You click the Windows Security icon in the taskbar or try to open it from Settings, but nothing h...

Fix Outlook OAuth 2.0 Token Expired Error

If you see an error like “Token expired” or “Authentication failed” in Outlook ...

How to Fix Command Prompt Access Denied in Windows 10

When you see 'Access Denied' in Command Prompt on Windows 10, it usually means the system is prev...