Just got an SSD as a gift, Intel 80gb. I installed an OEM windows 7 Ultimate 64 bit on my 1 tb WD caviar 7200rpm. I would like to cleanly reinstall it on my new ssd. What should I do? What will happen to my files in my current HDD? Do I need to erase the os files From the hDD and if yes how so? Sorry I'm still really new to this ms computer building in general (made my first build 1 month ago). Also say I do install it via the disk, it said single license so will the key work? Not too good with software sadly.