This is just a warning to the community. I have a Surface Pro 3, installed the windows 11 Release preview on it some time ago. I only use local accounts, no online MS bs. I found my drive was encrypted with Bitlocker, when i tried to save the key it would not allow it. I was forced to sign in with my MS account, switch over all authentication to the online account. Once this was done the bitlocker key was backed up to my online account. Had i not found it was encrypted and it decided to lock up before I switched over all my data would have been destroyed. Which this is a test machine, if it dies it dies, however there is some data on it I don't want lost. Be on the look out Microsoft will encrypt your drive and not give you the key till you sign up for their crap.