How to disable Aero in Windows Server 2008 R2?
You can disable Aero Peek in Windows Server 2008 R2 by proceeding like mentioned in the article (It is for Windows 7 but I think it will work on Windows Server 2008 R2).
Microsoft is conducting an online survey to understand your opinion of the Technet Web site. If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.
Would you like to participate?