i need help reformatting my hard drive. i'm running win 98se and have a 13 gig hd partitioned in two (a C drive & a D drive). i need to basically clean it all out because it doesn't run like it used to. how do i reformat both drives?? and do i have to, if the C drive is my main drive. and is it recommended to not partition it, once i reformat it, unless i'm running 2 different operating systems?? i'm going to need step by step info on this please.