I had a quick look at my Windows 10 machine.

It looks like they gave up on the image based backup. It is still there, called "Backup and Restore (Windows 7)", but I'm guessing that naming means it is going away.

The new stuff is the File History stuff. That takes the "just backup the files as they are" approach, rather than creating images. So it isn't going to help with getting back to a bootable system, but it could work for backing up Doug's data.

I've just turned it on for my machine and pointed it at a network share, I'll see how it goes. This is the only machine of mine that doesn't really get fully backed up, it is basically just my games machine, but even then I have CrashPlan on it backing up 1GB of game save data.

Doug really should give CrashPlan a go.