Microsoft’s Leaner Approach to Vista Security
Secure Startup is primarily designed to prevent laptop thieves and other unauthorized users with physical access to a computer from getting access to the data on the system. Secure Startup uses a chip called the Trusted Platform Module, or TPM, which offers protected storage of encryption keys, passwords and digital certificates. Vista uses this capability to verify that a PC has not been tampered with when it starts up and to protect data through encryption.
