How to activate Windows Server 2012 Standard R2 Evaluation to Windows Server 2012 Standard R2 full version
 
 I have installed Windows Server 2012 Standard R2 Evaluation  from *.iso file downloaded from microsoft website in Hyper-V virtual machine .   The following step by step guide provides the activating to full version.   Even if we activate the windows using Server Key, by adding it from  My Computer --> Properties --> Change Product Key , it won't be activated. It will give the following error - "That key can't be used to activate this edition of Windows. Please try a different key"       Two ways to verify that our product is evaluation:     The evaluation notice can been seen at bottom right corner of  desktop background.    From an elevated command prompt do the following:   Determine the current edition name with the command   DISM /online /Get-CurrentEdition.                   It will show  "Current Edition :  WindowsServerStandardEval"    To convert to full version follow these steps:   In elevated command promp...