If your organization has previously purchased licenses, you can retrieve the "untouched" retail or volume license ISO directly from the Microsoft VLSC.
Windows Server 2012 R2 is a server operating system released by Microsoft in October 2013. It is the successor to Windows Server 2012 and introduces improvements in virtualization (Hyper-V), storage, networking, and identity management.
When downloading, you will see two primary editions. It is important to choose the correct one for your hardware:


