KB: Generation 2 VM created in System Center 2012 R2 Virtual Machine Manager cannot start

When you use System Center 2012 R2 Virtual Machine Manager (VMM 2012 R2) for template creation, you may discover that Generation 2 virtual machines (VMs) based on this template cannot start after creation and VMM returns the following error:

Error (23352) VMM cannot find the device or this device is not valid for a boot device.

The issue can occur if the Bootmgfw.efi file is set as the first startup device that the VM tries to start from instead of the .vhdx file that contains the operating system.

For complete details as well as a resolution, please see the following:

KB2955362 - Generation 2 VM created in System Center 2012 R2 Virtual Machine Manager cannot start (http://support.microsoft.com/kb/2955362)

J.C. Hornbeck| Solution Asset PM | Microsoft GBS Management and Security Division

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