I recently purchase a Dell Inspiron Laptop which gave me a nightmare to install Windows 7 on it.

The "secure Boot" isn't to secure the boot against rootkit, but secure from "unauthorized" or "unsupported" install your favorite operate system. In this case, I cannot install windows 7 on my brand new laptop.

I still remember the SIM card lock from carriers years ago, so if i am the vigilant, I am going to ask users to pay upfront to unlock "Secure Lock" so that they can install another operate system.