1) Microsoft mandates that PC vendors allow users to disable Secure Boot. In the last rev it's up to the hardware manufacture. Do research before you buy. 2)root is not allowed to be illegal. 3)I've never had this issue but I don't play by the rules. 4)This is two issues a)it will not be less secure it would be the same as having a second key for your front door, or creating a second private key. Just because you have two keys does not mean it's less secure the proof is in the proof (it's math problem). b)government spying/big brother/what have you... I don't know anyone who would like this.