Service Pack 1 (SP1) of Windows 7 and Windows Server 2008 R2 is available
Microsoft released the RTM of Windows 7 and Windows Server 2008 R2 to the OEM partners and from coming 16th will be available for MSDN and TechNet Subscribers as well as Volume License Customers. For General Availability (GA) users have to wait till Feb 22nd so that they can download respective SP from Microsoft Download Center and also via Windows Update.
In Windows Server 2008 R2’s SP1 two new features as client side support for RemoteFX and Dynamic Memory are included and in Windows, SP1 is ready to keep your PCs well supported by delivering ongoing updates. For more details regarding Windows Server updates in SP1, you can visit here.