Eruvarn

I have to say that I disagree with you. When I've worked on projects by myself, or perhaps one other developer, I've found git to be much easier to use than making manual backup-folders. There isn't really any need to use that many branches when you're only two developers, so most of the time you're just going to be using git commit, pull and push. It takes about as much time as making backups, and the ability to see exactly which lines where changed in each commit can be invaluable at times.

But if you're going to go through all that work... isn't it easier to just use Git, or some other VC?

While running Windows, as long as it isn't some modified version of it, there's always a risk that Microsoft could be collecting information about you. A VM is supposed to simulate a computer as accurately as possible, and shouldn't have any impact on the information Microsoft can collect about you.

I wouldn't say it's insecure though, it's mostly a matter of privacy.