Since a formal SP2 does not exist, Microsoft released a "Convenience Rollup" in 2016. This is the closest equivalent to an offline SP2, containing nearly all security and non-security fixes released between SP1 and April 2016.
Windows Server 2008 R2 stands as a landmark in server operating systems, but finding the right updates for it today can be a confusing task. If you are searching for a "Windows Server 2008 R2 Service Pack 2 X64 Download Offline," there is one critical fact you need to know first: Windows Server 2008 R2 never received a "Service Pack 2." Windows Server 2008 R2 Service Pack 2 X64 Download Offline
You need to download a second wave of offline updates. From the Microsoft Update Catalog, pre-download these x64 updates to your offline USB: Since a formal SP2 does not exist, Microsoft
Pro Tip: Also download the servicing stack update ( ~9 MB) from the same catalog. This update must be installed before KB3125574. If you are searching for a "Windows Server