Ditto @DavidOverholt . All of my original 4.3 upgrades were within the MAS folder so if IT only backed up that folder, they were good. It took me far too many painful upgrades to finally get a clue and move it out. But I do break it down by type because I ran into an error once when the folder was ""full"". Yeah, yeah, I thought that didn't happen anymore, but it did, on an older Win server. (Don't know the version.)