While only achieving a 9 out of twelve score in the study of the following areas:

• VPN
• Disk Encryption
• Authentication
• Secure Boot
• Platform Integrity and Sandboxing
• Application Whitelisting
• Malicious Code Detection and Prevention
• Security Policy Enforcement
• External Interface Protection
• Device Update Policy
• Event Collection for Enterprise Analysis
• Incident Response

Linux still beat Windows 7 of 12 and Mac OSX’s 8 of 12.  A full synopsis can be found here from TechRepublic.  Remember though no OS scored a perfect score and 9 out of 12 is still only a C.  So there is plenty of room for everyone to improve.