Upgrading W7 to W10 (free), any way to end up with dualboot?

I know that dualbooting is (of course?) possible with, for example, W7 and W10. This is what pretty much all my google research has led me to, even though I was looking to find out something more specific:

What I don't know is: Can this free upgrade essentially turn one OS into two?

I wouldn't mind having Windows 10, but due to compatibility problems with software I need for work, I *cannot* lose my W7 for now.
Also, I just plain like W7, so if I have to choose between 7 and 10, then 7 it shall remain.

But again, and maybe to rephrase the question: how would I get from one W7 (single boot system) to one W7 AND one W10 (dual boot system)?
Would I first have to buy a second W7 licence, turn my existing system into dualboot with 2x W7, then upgrade one of them? That would be a pain.

Not unless you get another licence for Windows 7.

The original licence is the basis for the upgrade, hence no longer valid once you upgrade.

Sorry 2 FROM 1 doesn't work.
you can as you found out Dual boot.

You are also correct about having to buy a second licence,
(get your company to buy it for you W10 of course, lots of dubious W7 licences out in the wild)

As for the set up.
Stay with W7 as your Primary, make W10 the secondary
https://www.google.com/url?q=http://...E21cKpnj6f0E_Q


Roy

Thanks for confirming my suspicion!