Install Sierra on Macbook Pro shipped with High Sierra New MBP purchase shipped with High Sierra. I'd like to downgrade to Sierra but am running into the issue that you can't install a version of the OS lower than what was shipped. The explanation I found is that the drivers don't exist, but I know for a fact that the drivers exist since there is another MBP at my company shipped just a few months prior with the same specs, running Sierra. Is there any way to force this laptop to boot into a bootable Sierra install USB drive so I can perform the downgrade? I can't even get this laptop to boot from a live Linux USB, I just get a giant "No" icon. It seems li

I've tried to sidestep it a few ways, none of which have worked. I'm now thinking of trying to clone the hard drive from the other MBP I have that's running Sierra onto the new one. I wish I knew how Apple was able to perform this restriction. I imagine it's just a piece of information somewhere with a version check, if I could find that file maybe I could lower the minimum version?

I'm not willing to put High Sierra on my network yet, it doesn't play nice with profile management or Munki. I also really don't like the idea that I've purchased hardware which doesn't allow me to install the software I actually want. I know Apple is "Big Brother-ish", but this obnoxious. For what they charge for hardware, I should be able to do whatever I want to this machine.

My rant aside, does anyone have any insight on a method to get around this restriction?

EDIT:

In regards to the duplicate flag, I had read all of the referenced articles before posting, but asked this anyway because I wanted to know if it was possible to circumvent the protection. As I said, I find it very difficult to accept that I've purchased a piece of hardware which I won't let me use it the way I want to use it.
The well-accepted answer now and since there have been Macs (I believe...) is that whatever OS ships with it is the earliest version of the OS that will go on it.

So if it ships with macOS 10.6.8 then there is no way you will ever get anything lower than 10.6.8 on it (not 10.6.7, not anything).

So to answer your question specifically, if it came with High Sierra (whatever version) that is the lowest version of macOS it will ever run.

There may be hacks around that (and that answer won't be here), but I am not aware of any and I have been supporting Macs since 1990, professionally since 1992.