How to add, change or remove keyboard layout input method - Windows 10?

Summary:

How to add, change or remove keyboard layout input method - Windows 10?

Problem or Goal:

When I press shit + 2 on my keyboard, it types the quotation mark (“) instead of the at symbol (@). 

Cause: 

This is caused by having the wrong keyboard layout in your computer settings.

Solution:

Watch my five minute video on YouTube on how to quickly fix this

Problem Solved?

Yes