I've recently bought an external HDD by Western Digital wich is actually for Mac use. To use it on Windows (I've got Vista), it had to be partitioned first, wich i did. Unfortunately now I can't connect it to a Mac i've still got Files on. My first thought was to Undo one of the unused Partitions, but I don't now how to do that. I'm also not sure if that's even possible or if there's another way to do it? Hope someone knows!