Making the Experience Better Together with Windows 7
Windows Server 2008 R2 has many features that are designed specifically to work with client computers running Windows 7. Windows 7 is the most current version of the Windows operating system from Microsoft.
Read all the security features at https://www.microsoft.com/windowsserver2008/en/us/R2-better-together.aspx#secbran
Read my favorites blogs:
Designing a backup less Exchange 2010 Architecture
Microsoft Exchange 2010 CAS Array – Steps and Recommendations