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

Fix 'Port Already in Use' Error When No Process Shows

You try to launch Chrome or a Chrome-based tool (like Puppeteer, Selenium, or a local dev server)...

Fix Windows Update Stuck at 100% in Safe Mode

If you boot into Safe Mode to troubleshoot a stuck Windows Update, only to find the update still ...

Fix PowerShell Remote Connection Refused Error

Fix Windows Update File Locked: Cleanup Tool Guide

When you try to clean up Windows Update files and see errors like "file is locked" or "in use", t...

Outlook Proxy Settings Not Saving: Fixes That Work

Outlook proxy settings not saving usually happen after a Windows update, antivirus change, or mis...

Fix Chrome Profile Connection Refused or Permission Denied

When Chrome throws a "connection refused" or "permission denied" error related to your profile, i...