It also backed up all of the operating system, taking time, even though I didn't ask it to. I want only my own data.
I get message on email about once every two weeks saying that the "backups don't match our records". I don't know what that means, given that the backups appear correct. It invites me to uninstall and reinstall. Would that cause it to re-back up everything? I don't have time for that.
Judging from other comments on the web, it seems like this problem has to do with Windows 8, and also appears on the Mac. It has never happened on an older Windows 7 computer.
It may have to do with the fact that I turn the laptop off when it won't be used for a while, or when I am away.
Does anyone know?