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Hyper-V - VSS Snapshot (Online Backup) of Server 2012 or Windows 8 Virtual Machine puts in saved state - Best Tech Blog | Windows | Linux | Mac | How To
If you are running a Hyper-v Role on Server 2008 R2 (not tested on Hyper-v 2012) and you have a Windows 8 or Server 2012 running as guest OS (virtual machine) you may have a problem when trying to execute a VSS backup snapshot of the whole server (including its VMs). For example using Windows …