Hi I just got my new computer and I'm newbie. I connected my old hdd in to SATAR and it works but the this disk, should be clean and be free for storage of files. My computer runs windows 7 from the main hdd and on the second hdd there is a windows xp on it. My question is if I could delete every folder on 2 hdd exactly every single files but not my photos, would this hdd still work if i deleted the windows stuffs? Or i need to format it ?