Q. What is Windows 7 SP1? A. Windows 7 Service Pack 1 is an update for consumers and IT Pros that helps keep your PCs supported, provides ongoing improvement to the operating system, by including previous updates delivered over Windows Update as well as continuing incremental updates to the Windows 7 platform based on customer and partner feedback, and is easy for organization to deploy a single set of updates.
Q: What is Windows Server 2008 R2 SP1? A: Windows Server 2008 R2 SP1 is an update for enterprises and IT Professionals that includes virtualization enhancements, previous improvements delivered via Windows Update, and addresses feedback from customers.
Q. What are the system requirements for the Service Pack 1 beta? A. Your current operating system must be the Release to Manufacturing (RTM) version of Windows 7 or Windows Server 2008 R2 (build 7600).
Q. Can I install the beta on an evaluation version of Windows 7 or Windows Server 2008 R2? A. Yes. The beta of SP1 can install on RTM evaluation versions of Windows 7 and Windows Server 2008 R2.