Would like to install a PNY XLR8 pro 120GB SSD, to my existing desktop as a dedicated OS drive. Running Windows 7 ultimate, 32bit on the desktop. I have the product key (on the sticker) for the OS, but I do not have the system disc as the OS was preloaded. How do I get the OS from the hdd and on to the new ssd without the disc? Is there a step by step available out there? Thanks in advance to the community for any help provided.