I will be doing a fresh install/upgrade on my new ssd to windows 8. I want to keep my old hdd for spare storage but contains the old OS (windows 7). Is there anything i need to do to prevent any conflicts between the ssd and hdd and the OS's when I begin the install? Or when formatting the hdd will that clear the OS and any potential conflicts? Or do I need to do a complete wipe of the hdd? Thanks in advance