Chosen Solution

How do I add extra memory to my HP Red Flyer

It sounds like it is a nightmare to do: http://www.strategicpoints.com/2015/08/2

Depending on your model it is harder or easier. Some laptops have a easy thing to get off, some you have take the whole case. If it is easy you will see a simple ram stick shape by a panel. When you get to the RAM put the new stick in you might have to take one out.