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 Defender Not Recognized' Error in Command Prompt

Fix Windows Search Blank Screen When Clicking Start Menu

If clicking the Start menu shows a blank search screen instead of the usual results and apps list...

How to Resolve Windows Search Port Conflict Using CMD

If Windows Search stops working or you see errors like “The service cannot be started” or “Port a...

How to Fix Outlook Port Conflicts with Other Email Clients

If you run Outlook alongside another email client like Thunderbird, eM Client, or Mailbird, you m...

How to Fix GitLab Runner Pending Infinite Loop

If your GitLab CI/CD jobs stay in a pending state indefinitely and never start running, you may b...