I downgraded my system from Vista to XP Pro. I have one 80gb HD and one 400gb HD. i cannot retrieve any data from my 400gb, i have 244gb of media in there. I go to my computer, click the 400gb drive, n it tells me that its not formatted and asks me if i want to format it...but if i format it I will lose all my data. I also went to disk management and in the 400gb hd it shows 128gb and 244 gb seperate.... is there a way i can get my data back? I don't want to lose anything Will it work if i upgrade back to windows vista?