If you export your Server 2008 R2 with disk2vhd or import your Baremetal Backup into Microsoft Hyper-V Manager then you need to activate your Server 2008 with the Virtual Key as shown above instead the Product Key.
If you export your Server 2008 R2 with disk2vhd or import your Baremetal Backup into Microsoft Hyper-V Manager then you need to activate your Server 2008 with the Virtual Key as shown above instead the Product Key.