Except in the case of Win8 secure boot on tablets, which can't be rooted and dual-booted. Unlike Android.
From a policy/ethical perspective, if you have to find a security exploit first to completely own your device, how is Android OEM policies any different from Windows then?
Whereas the Win8/secure boot ecosystem is an active pain to dual boot, where it doesn't just downright block it entirely. I had a Win8 laptop that I bought recently, it was an absolute pain in the arse to get anything other than windows booting.
You got an sign error on my meaning.