It's all about pure GREEDY money by Microsoft. Funny is open source Linux operating system does work with 40 years old PC with very old hardware!
I think its more about trying to finally get on top of Windows security issues. Android, iOS, MacOS, they all already are locked down in this way, its just a lot more complicated to achieve on a platform that historically was so open and poorly written, when it comes to security.
They've been working on getting as much code restricted to user mode as possible for years now, I suspect this is just the next step in their security lock down. I just hope this means Bitlocker will finally be available to Home users.