oscdimg -m -o -u2 -udfver102 -bootdata:2#p0,e,bC:\iso\boot\etfsboot.com#pEF,e,bC:\iso\efi\microsoft\boot\efisys.bin C:\iso C:\final\WS2008R2_Jan20.iso
Even if you find the perfect en-us 64-bit ESD for Server 2008 R2 SP1, consider what you are plugging into your network: windows server 2008 r2 sp1 x64 esd enus jan 20 full
The "Jan 2020" designation is critical because it marks the end of the Standard Lifecycle Policy for this operating system. Windows Server End of Life - Lansweeper Exclusively 64-bit (x86-64), as Windows Server 2008 R2
Uses "Electronic Software Download" compression, making the file significantly smaller than a standard ISO without losing data. Net Framework 4.8: Exclusively 64-bit (x86-64)
Based on the same codebase as Windows 7, providing a stable and familiar environment for legacy applications.
Exclusively 64-bit (x86-64), as Windows Server 2008 R2 was the first version to drop 32-bit support.
The inclusion of "SP1" means this installation media already includes the first major collection of updates and security patches.