I was trying to format my harddirve on my hp laptop becuae i wanted to get rid of all the thing hp did to winxp(it was causing it to perform very slow), it wouldn't let me format it so i went to use partition magic to make a new partition and then go partition the c drive. it wouldn't let me do that either, so i just deleted the partition. little was i thinking that hp put their own bios in the computer and i have no idea where to go from there. it just says there's no os but doesn't give the option to do anything. how do i install a new version of xp.