http://www.microsoft.com/licensing/about-licensing/briefs/win2008-virtual.aspx
Dokument Licensing Brief - Licensing Windows Server 2012 R2 for Use with Virtualization Technologies
Text, strana 6: Running Prior Versions or Other Editions
If you have Windows Server 2012 R2 Standard edition,
you will have the right to run the bits of any prior version of Enterprise, Standard or Essentials edition.
Stacilo cca 10 minut hledat.
Tj. muzete na W2012 STD provozovat VM s W2008R2 ENT