Time Machine for PC?
I do not have a Mac Machine is there a Time Machine for PC? Listening to Lee's 2nd business class Lee mentions Time Machine but I find it is for only Mac.
Here's a quick link I found for PC. There are probably a number of software companies offering this out there.
Good luck and post a review if you buy one! : )
Not sure if this is what you are after, but Dropbox has a built in feature that keeps previous versions of a file in the cloud. This has saved me countless times when I accidentally saved over a file and could then look through my previous saves and download one before I made the change.