Not an answer per se, but so far the best solution I've found for the random reboots is the RebootBlocker service[0] written by Ulrich Decker
Now I've come to your comment and am now realizing that apparently there is no built in functionality to prevent forced update/reboots (while connected to the internet) in Windows 10.
I not crazy anti-Microsoft, but that's absurd and honestly aside from gaming (which I don't have a gaming PC anyways) I miss nothing from Windows.
I see comments about Linux on random laptops, I've only have had good experiences with it generally. I'm not a power user. I've run at least one distro or another on a random cheap netbook, a 2005-08 Sony laptop, a low end and higher end Lenovo laptops, and honestly other than the one I'm on right now I've not had the problems people talk about it (something related to the CPU was crashing the system, found a solution online and everything is good now). Maybe I'm just lucky.
And there is nothing to disable the shortcuts or installation of silly program like candy crush.
I remember reading something about a Windows 10 edition without all this crap, but it was only for very big accounts and with a specific contract with Microsoft.
I don't want come across as trying to convert or be rude, but what does Windows provide, both home users and businesses, that open source operating systems are unable to do?
As someone just kind of starting out, is Windows promising for future career building?
I understand backwards compatibly and larger selection of games, and that hardware manufacturers will provide software.
If you look at the big IT stories around OSS (e.g. LiMux; in Switzerland there was a similar story in Solothurn), you'll find that the reason for those failures usually comes down to people refusing to give OSS the benefit of the doubt, often combined with incompetent project management.