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

Fix 504 Gateway Timeout with Curl Command

When you see a 504 Gateway Timeout error, it means a server upstream (like a proxy or gateway) di...

How to Fix Windows Defender Firewall Blocked App

You try to open an app, but it either won't start or can't connect to the internet. A common caus...

Checklist to Resolve Windows Defender Update Errors

When Windows Defender fails to update, you might see error codes like 0x80070643, 0x80240022, or ...

Fix Command Prompt DNS Lookup Failed Error 0x80072ee7

Chrome Connection Refused After Update: How to Fix

After a Chrome update, you might see a "connection refused" error when trying to load websites. T...

Fix 'nvm command not found' on Windows After Installation

After installing Node Version Manager (nvm) for Windows, you may open a terminal and see 'n...