I have downloaded the DS2 Demo, and it wont run.. I tried to uninstall the game and there is always error occuring. my display adapter is geforce 2 / mx/mx 400.. what will happen if I dont unistall the game? If i just delete the whole game in my drive will this ruined my pc?

Hi , can someone please tell me what will happen if I only delete the program in drive C? Because the uninstall shortcut is not working at all.