I have windows server 2012 datacenter with hyper-v role. Activation works without any problem. I have found some problems to activate the operating system that runs on the same physical machine as virtual machine. At the moment there are two VM with windows server 2012 datacenter that use the same serial number, but after the first activation appears for the other the error code 0xC004c008. How can I solve this problem? This version of windows server 2012 (datacenter) should give the possibility to install an unlimited number of instances of windows server 2012 datacenter in the same physical machine.