How can I deactivate intel anti theft on my msi ultrabook?

I have a msi ultrabook and I can't access it through windows cause message prompt like this below:

how can I deactivate this intel anti theft?

This computer has been disabled using intel (R) AT.

Intel (R) AT system lock due to :Platform Attack Detected

Time Left to enter passphrase : 811 second

Please select one of the following for platform recovery:

    1. - Passphrase

    2. - Server Recovery Token

Select one of the above options to proceed...

Invalid Selections, Press 1 or 2

Unlock with Norton Anti-theft http://goo.gl/gccEG

Platform ID : 00005C3E

Intel (R) AT service provider ID :15000