“I just goofed”
Are you in root?
“Uh. Yes.”
You eeediot!
Yes, that did happen.
Thankfully it was just a VM and could be reset.
Setting up Windows with an Admin account that will protect you from doing stupid things to yourself is an afterthought. Most people don't even know how to do it.
It's 2nd nature for any Linux installation.
Still, most of us don't even use the computers any more, we just use the applications. That's why I'm looking so seriously at Android. The OS is app-based, not system-based.