raompi 0 Newbie Poster

i got a dell b130
that is very slow and keeeps crashing
i just upgraded the memory from 514mb to 2 gb havent noticed the change yet
i also ran norton for virus and it didnt pick up anything
ooh yes tha control panel was missing and with win tweak i manage to get it back and removed alot of programs that i wasnt using( virus removers) but now it gives me messages that is missing lins or dll. files many differnt ones any suggestions