Yesterday I posted about how Windows 8.1 / Windows Server 2012 R2 allow you to export a running virtual machine.  This is also available when using SCVMM 2012 R2.

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Here you can now clone a running virtual machine.  When you clone the virtual machine you can either store it in your virtual machine library, or you can immediately deploy it to a Hyper-V server in your environment.

Cheers,
Ben