I just bought a WD My Passport Ultra 2 TB and I have two questions about it regarding Time Machine. Question1 In my household there is only one Apple computer. If i use Time Machine as backup software, will the backup be accessible by a windows computer. The reason I aks this is incase the scenario occurs where the only Apple computer in the house suddenly becomes unusable (for instance water damage). Question 2 My computer has an SSD of 256 GB. My external drive has 2 TB. I'd like to partition the external drive to 2 partitions, 1 HFS+J for Time Machine, one ExFAT for movies, games and whatnot. Question is how big should the HFS+J partition be for Time Machine to work properly. Also i'd like to hear any experiences using WD backup software on a mac.