@Jeff_R1, that partition level duel boot thing is ok if you can spare the GB's but it doesn't protect against a complete loss of the hard drive.
With me I have lots of drive space, I never keep my files of anything on my machine because of hard drive failures (the non SSD ones any way)
And no it doesn't protect a complete loss of hard drive, but I thought we were talking about an easy way to assess W10.
Creating an image of your old OS and allowing Windows utilize the whole drive to upgrade to W10 seems like allot of bother.
And the having to put the whole thing back using an image, however that image was created, takes a long time.
I agree with Adbear, the Windows imaging application is much easier to work with. I tried Macrium Reflect and found that there were way too many steps.
The Youtube tutorial makes it seem simple, but I found it took longer then simply using the method from with in Windows.
MR works well for XP and I dare say Vista, but only because those antiquated operating systems don't have there own back-up applications.
Roycal, once you get to know the back-up system from Windows, I am sure that you'll find MR quite a bit more work.
And I say this having used both applications or rather I tried using MR and gave up on it after realizing it was taking too long going through all it's steps.