Upgrade Windows Server 2008 R2 P1 to Windows Server 2012 R2

We had a Windows Server 2008 R2 P1 system, to be upgraded to Windows Server 2012 R2 which we had it on an installing CD.1: Insert the CD:.

Windows 2008 VPS via Upgrade Windows Server 2008 R2 P1 to Windows Server 2012 R2.