Microsoft Windows Server 2008 R2 Standard - Instant Download
Comes complete with user guide
Windows Server 2008 is the server operating system developed by Microsoft. It is considered the successor to Windows Server 2003 and boasts new features such as Server Core, an optional installation which allows administration completely via the command-line interface.
In Windows Server 2008, Microsoft rolled together the Manage Your Server and Security Configuration Wizard from Windows Server 2003 into the Server Manager console, which allows administrators to conduct many server tasks.
The Windows Server 2008 R2, Standard Edition is the most common server version of the operating system. Unlike previous versions of Windows Server where basic functions and scalability for memory and processor support was limited to only the Enterprise or Datacenter Editions of the operating system, Windows Server 2008 R2, Standard Edition is now the default version deployed by organizations.
A basic Windows Server 2008 R2 x64-bit Standard Edition system supports up to four x64 professor sockets and 32GB of memory and supports all of the server roles available in Windows Server 2008 R2, with the exception of clustering, cross-file replication (DFS-R technology), and Active Directory Federation Services.
The Standard Edition is a good version of the operating system to support domain controllers, utility servers (such as DNS or DHCP), file servers, print servers, media servers, SharePoint servers, and so on. Most organizations, large and small, find the capabilities of the Standard Edition sufficient for most network services. See Chapter 34, "Capacity Analysis and Performance Optimization," for recommendations on choosing and tuning a Windows Server 2008 R2 system that is right for its intended purpose.