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

Fix Chrome Proxy Error 'Connection Refused' (Step-by-Step)

You try to open a website in Chrome and get 'ERR_CONNECTION_REFUSED' or 'Proxy server is not resp...

Windows Activation Setup Guide for a New PC

When you set up a new PC, Windows may prompt you to activate. This guide covers the typical activ...

How to Configure Windows Defender on macOS

If you're trying to configure Windows Defender on your Mac, you might be running into confusion b...

Chrome Browser Setup Guide for Linux Ubuntu

If you're setting up Chrome on Ubuntu for the first time, you might notice it's not in the defaul...

How to Fix 'This Site Can't Be Reached' in Chrome

You try to open a website in Chrome and see 'This site can't be reached' with an error message li...

Fix SSH Permission Denied (publickey) on Raspberry Pi