Yes, but on Linux, if I am root, I am God. I do whatever the fuck I want with my machine, for good, evil or stupidity. That's the poster's point. It seems like Windows doesn't allow you to do this, or at least not easily. So I guess people who want to have absolute control over their computer shouldn't be using Windows, I guess.
It’s quite common to login as admin on windows though (in home setups), you’ll still have to authenticate for administrative tasks (the UAC popups).
The issue here is mostly that the user has probably upgraded and windows changed their account, resulting in the files being owned by their old account.
In linux, that’s fixable with ‘sudo chmod -R’
In Windows, there’s no built-in way, you need the take ownership script.