: 64-bit only (IA-32 support was dropped with this version). Kernel : Based on the same kernel as Windows 7. Memory (RAM) : Minimum : 512 MB.
Windows Server 2008 R2 SP1 x64 ESD EN-US (Jan 2020) is a specific distribution of the server operating system that includes all official updates up to its end-of-life date on January 14, 2020. Key Technical Specifications