Error message when you try to start a Hyper-V virtual machine on a Windows Server 2008-based or Windows Vista-based computer that uses the NUMA architecture: “An error occurred while attempting to change the state of virtual machine VMNAME”
You are running a Windows Server 2008-based or a Windows Vista-based computer that uses the non-uniform memory access (NUMA) architecture. When you try to start a Hyper-V virtual machine, the operation may fail because of a memory allocation issue. Additionally, you may receive the following error message:
An error occurred while attempting to change the state of virtual machine VMNAME.
‘VMNAME’ failed to initialize.
Unable to allocate 1024* MB of RAM: Insufficient system resources exist to complete the requested service. (0x800705AA)
*number will vary based on the amount of RAM assigned to the VM
This issue occurs even when there is sufficient memory available.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB953585.