Greetings, So I bought the Surface 3 for testing at my business (I'm IT support). I loaded 8.1 Enterprise since the version that ships doesn't allow you to add the device to an Active Directory domain (I have Pro licenses and a site license for Enterprise so I'm good there). I spent the day updating the thing (there were over 5GB in updates) and then went to bed with the battery at 44%. I left the default power settings and it was hooked up to my home wireless network. When I got up four hours later, the battery was dead. Does anything with Enterprise make it drain the battery faster even if it's in standby/sleep? I wouldn't have thought so but I'm stunned that the battery was dead. I've got a lot of people liking the Surface 3 because of the size but if I can't mange it, then it's not an option. Any advice or insight would be helpful.