I apologize in advance if I have posted this incorrectly. I've been away on vacation, and when I returned yesterday, I realized it was time to activate again. Originally, I used the 2.4.9 Official version for Office Professional 2013 VLx64, with Windows 7 operating system. I wasn't sure if I was supposed to continue to use that, or to use the 2.5.1 version, so I tried to activate using the 2.5.1 version first, and did not have any luck. I have 3 days to get this done, or I am in big trouble. I have to tell you that I have NO experience with this type of thing, and have no idea as to what all the terms mean. Unfortunately, I'm one of those people that need written instructions. Any help you can provide would be appreciated! Thank you, and thanks for everything you guys do!