Installing Windows Server 2008 R2D-25For a server running a Server Core installation1.At the command prompt, typeslmgr –dli, and pressEnter.IMPORTANT:If the following message appears, Windows hasalready been activated on your system. Clickto exit.2.Typeslmgr –ipk , and pressEnter.* PID is your product key on the COA label.3.Typeslmgr –dtito obtain an installation ID for Windows activation, and pressEnter.4.See "%systemroot%\system32\sppui\phone.inf" for the phone number of the Microsoftcustomer service.