pop your old hard drive in your new computer. boot from a windows xp or windows 7 cd rom and format the disk. if your unfamiliar with the process then you can google it. Just format the drive with NTFS and you will be fine. dont waste your time on system restore as it doesnt work as intended to most of the time. Viruses can be tricky. Just because a virus has been active for a few days or weeks doesnt meet that the actual virus hasnt been on your machine for months now without you knowing about it. Viruses do weird things, such as sit in silence collecting information for lord knows how long until finaly its time to strike lol. your only option is to reformat. system restore might look like it worked. but i wouldnt count on it. formatting your hard drive and installing a fresh installation of windows will work for sure. no doubt about it. if ya need help just ask me.