After reading info and documentation it seems to me that these are the ways of setting a remote computer in "Admin Control Mode":
- Going phisically and make a "ctrl-p" bios setup.
- Purchasing a valid certificate and configure remotely via RC server
- Sending a usb key with PID-PPS pair and then configure remotely
It's that correct? are there any other methods?
Correct, all three of those methods allow you to configure a vPro computer in Admin Control Mode. You are also able to configure a vPro computer using a USB key containing a single non-consumable PKI record file.