External Hard Drive Not Opening on one Computer but Opens on another?

-Hi, I have a WD 2TB External Hard Drive. I backed my information up and formatted the Disk from NTFS to exFat (I wasn't given the option to format to Fat32).

Put my data back on and the computer that I used to move all the information works fine and recognizes the hard drive and open it up.

Any other computer will see it as being there but see no writable partition. The computer that it works on is Windows 7 and it doesn't work on the other windows 7 computer I have. Just as well it does the same thing with any windows xp computers I have.

I need it to be in Fat32 (or in this case the closest I can get is exFat) so I can watch the movies I have on my external hard drive on my xbox.

Please help soon and Thank you.You cannot create a fat32 partition larger than 32GB on windows. If you want to use windows for it you will just have to create several 32GB fat32 partitions on it so that you can use it on your xbox. The only way that I have been able to create a fat32 partition larger than 32GB is by using ubuntu linux. I have used this method many times on my 1tb external hdd to back up my ps3 and it works perfectly.