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...

BitLocker Access Denied After Password Change: Fixes

You changed your Windows password, and now BitLocker is denying access to your encrypted drive. T...

Change Windows Update Port to Fix 'Already Allocated' Error

When you see "port already allocated" during Windows Update, it usually means an...

Microsoft Teams Network Error Checklist: Fix Connectivity Issues

You're in a meeting or trying to send a message, and Teams shows a network error. The app might s...

Windows Security Scan Stuck at 99%: Practical Fixes

You run a Windows Security (formerly Windows Defender) scan, it reaches 99%, and then… nothing. I...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes