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

Fix 'Port Already Allocated' Error After Windows Update

After a recent Windows update, you might see an error like 'port already allocated' when starting...

Chrome Browser Token Expired Not Refreshing: Practical Fixes

You're working in a web app and suddenly get a 'token expired' or 'session expired' message. Norm...

How to Fix Command Prompt High CPU Usage on Windows 10

Fixing Nginx Permission Denied for Upstream Unix Socket

If you see connect() to unix:/var/run/php-fpm.sock failed (13: Permission denied) in...

How to Fix Windows Update Stuck on Loading Black Screen

You start your PC, see the Windows logo, then it goes black with a spinning circle that never end...

Fix 'Windows Defender Firewall Has Blocked' Error

You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...