I have a Toshiba Satellite L50-B-1V2 laptop, and some keys don't work on it. It used to be my sister's, and she did abuse it quite a bit, so that is a possibility. All I know for sure is which keys are not functional: grave accent (beside 1), 1 and 2 (not numpad), tab, W, E, caps lock, A, F, H, K, L, left shift, X, C, V, left control, and Windows.
Thanks in advance.