So I’ve been going through the forum and I see that this is a surprisingly common problem. I just bought a new computer with Windows 7 Pro 64 and I tried running My Passport 750gb and it detected it, it made the sound, it downloaded the drivers successfully and I was able to see it through Control Panel, however, it does not appear under Computer and although it appears under Drive Management it does not have a letter assigned to it and thus I cannot navigate it.
Now I see that the answer commonly given to this problem is a reformat and I guess I will have to do that but I do have one question I’d like to ask before: I was able to view and navigate this drive previously on a Macbook Pro with Windows 7 Ultimate, why wouldn’t I be able to do the same on my new pc?