The days when Admin could do anything on the computer are gone. Now you get UAC warnings if you try, and permissions are screwed in such a way that it'll be real hard for you do delete or alter anything vital to the system even if you would want to.
I wouldn't trust Microsoft much. They turned their Windows 10 into one big malware, which spies on you, installs unwanted software and much worse. It is striking that people are completely Ok with this (compare to the storms of lawsuits in the 90-s when Microsoft made Internet Explorer a part of Windows), so I think next Windows versions will be even worse. Thus, I'm with Windows 7 until it lasts, and I'm eying a good Linux distribution for my next main computer.