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

How to Delete a Locked File Using Command Prompt

You've tried to delete a file, but Windows says it's open in another program. This happens often ...

OneDrive Sync Configuration for Proxy Servers

If OneDrive won't sync at work or behind a corporate firewall, the proxy server is often the culp...

How to Fix 'npm command not found' on Mac

Fix 'Port Already in Use' Error with Windows Defender Firewall

You try to start a local service or application, and it fails with an error like 'port already in...

How to Fix PowerShell Remoting Network Error

When you try to run Enter-PSSession or Invoke-Command against a remote ...

How to Fix Microsoft Teams 404 Error with a Clean Reinstall

If you're seeing a 404 error in Microsoft Teams—often when opening a link or launching the app—it...