Windows Server 2008 R2 Sp1 X64 Esd En-us Jan 20... Updated -

Windows Server 2008 R2, which was the first Windows operating system to drop 32-bit processor support and be entirely 64-bit (X64).

Files with this specific naming convention are frequently distributed by third-party "repackers" who integrate all available security patches (up to January 2020) into a single installation image. While convenient for legacy maintenance, these should be verified for integrity before use in production environments. Windows Server 2008 R2 - Microsoft Lifecycle

Installing an original 2011-era ISO requires hours of "Update Catch-up." A pre-patched January 2024 image allows a server to be production-ready in minutes rather than days. 3. Legacy Application Support