I am not sure if I am posting in the right place
I have a gateway laptop, I allowed my friend to take my computer remotely to do something. All of a sudden when I began to type, the letter turned into numbers. I did a system restore, its fine now, but will the problem come back??

HI Lady G, welcome to the PCHF.

The problem might come back...might not. Can never really say.
It all depends on what you or your friend did, to make it happen originally...if that happens again, then it might come back.