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What is your shutdown action? There was a bug (patched) in 2012 R2 where VMs were not being shut down cleanly if that was your selected action. Pausing VMs (which I recommend anyays) worked fine. So if you haven't fully patched and you are choosing to have hyper-v shut down VMs during a restart, you may be hitting this bug.
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What is your shutdown action? There was a bug (patched) in 2012 R2 where VMs were not being shut down cleanly if that was your selected action. Pausing VMs (which I recommend anyays) worked fine. So if you haven't fully patched and you are choosing to have hyper-v shut down VMs during a restart, you may be hitting this bug.

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Server is fully patched, and this occurs during &nbsp;a normal restart of the host. The VM's auto-restart had previously worked just fine! I would not normally shut down the VM before restarting the host.
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Server is fully patched, and this occurs during  a normal restart of the host. The VM's auto-restart had previously worked just fine! I would not normally shut down the VM before restarting the host.

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Check your update history and make sure you have KB2887595 installed. &nbsp;If not, install it.
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Check your update history and make sure you have KB2887595 installed.  If not, install it.

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Aha! That's what it was. Someone else had been doing some maintenance on the server and changed the Stop Action to Shutdown. Thank you!
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Aha! That's what it was. Someone else had been doing some maintenance on the server and changed the Stop Action to Shutdown. Thank you!

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The Automatic Start Action is set is to &quot;Always start this virtual machine automatically.&quot; I have a time delay of 3 min.<br />
<br />
The VM will not auto restart when the host is restarted, and I have to start it manually.<br />
<br />
???<br />
<br />
Thanks<br />
<br />
Mark
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The Automatic Start Action is set is to "Always start this virtual machine automatically." I have a time delay of 3 min.

The VM will not auto restart when the host is restarted, and I have to start it manually.

???

Thanks

Mark

Server 2012 R2 hyper-v VM won't auto restart

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.

Windows Server 2012

Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems and supersedes Windows Virtual PC as the hardware virtualization component of the client editions of Windows NT. A server computer running Hyper-V can be configured to expose individual virtual machines to one or more networks. Hyper-V Server supports remote access via Remote Desktop Connection. Administration and configuration of the host OS and the guest virtual machines is generally done over the network.