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 VSCode Extension Host Terminated Error Code 0

What does this error mean?

When you see 'Extension host terminated unexpectedly with erro...

Reduce Command Prompt Memory Usage: Practical Steps

If you notice the Command Prompt (cmd.exe) consuming more memory than expected—sometimes hundreds...

How to Fix Windows Search Not Working After Migration

After migrating your Windows system to a new computer or a different drive, Search may stop retur...

Fix Windows Update ‘Authentication Failed’ or ‘Password Incorrect’ Error

You try to check for Windows updates and see an error like “Authentication failed” or “Password i...

How to Fix Chrome Token Expired Error

If you're seeing a "token expired" error in Chrome, it usually means your session token—a small f...