How does Windows 7 enhance security from the hardware side?

System security is an unchanging topic. WIndows is more prominent because of its large-scale application. Microsoft has been working hard to improve the security of the system. For example, XP starts to build a firewall, adds a security center, and Vista system. Introduced UAC function, built-in anti-malware tools, etc. So Windows7, what improvements in system security?
First of all, Windows7's firewall function is enhanced. It can also be protected for intranet and extranet. UAC function changes are more user-friendly, and built-in software security is also improved. IE8 supports CPU level protection. Windows7 has also made major adjustments to the automatic playback function of USB flash drives and mobile hard disks, completely prohibiting the automatic playback function of USB flash drives to prevent "sickness from entering the mouth". Based on Vista's security architecture, Windows 7's humanized modification strategy is also easy to understand.