The Windows 7 Service Pack 1 (SP1) is another classic service pack for windows users. SP1 is therefore a collection of all previously released Windows updates and patches.
For server users, the service pack update counts but with a functional. With the SP1 Microsoft Windows Server 2008 R2 extends the function RemoteFX. Thus, to remote sessions, 3D surface and multimedia features can be used together.
Important: For users of the beta or release candidate of the transition is far from straightforward. An upgrade to the final version of Service Pack 1 is not possible. Instead, you must remove the test version, used before.
Conclusion: Any Windows-7 user should upgrade to Service Pack 1, you will be updated to the latest version of Windows by the automatic Windows Update.