Service Pack 2 Patch Download ((link)) | Windows Server 2008 R2
Supports Service Pack 2 (KB948465).
Service Pack 1 (SP1) was the only official service pack released for the R2 version of the operating system. While a "Service Pack 2" does exist for the original (non-R2), these two operating systems are built on different kernels—Windows Server 2008 is based on Vista, while Windows Server 2008 R2 is based on Windows 7. Identifying Your Operating System
Official Downloads for Original Windows Server 2008 (Non-R2) windows server 2008 r2 service pack 2 patch download
Supports only Service Pack 1 (KB976932). Latest Official Updates for Windows Server 2008 R2
If you are actually using the original (non-R2) version, you need Service Pack 2. Supports Service Pack 2 (KB948465)
You must have Service Pack 1 installed before you can apply SP2. Important Support Note SP2 for windows server 2008 r2 datacenter
Often referred to by the community as "SP2 in all but name," this package contains all security and non-security fixes released from the release of SP1 through April 2016. Important Support Note SP2 for windows server 2008
Before attempting any downloads, verify which version you are running: