I'm pressing keys but other ones come up?

Question

I've noticed on some occasions that when I'm typing certain letters (on a.i.m, Word pad, any other kind of program that requires typing) other letters come up. Ex: I type "s" and "a" comes up. I usually have to exit out of the program and go back in. If that doesn't work I have to restart the computer. Anyone know what the problem might be? It's been going on for about a year.

Computer Information:

HP Pavilion wide screen laptop

Answer 1

You need to change your keyboard its has a problem or if you want, you can work on it.