Important : If you have virtual machines domain controllers on your Windows Server 2012 Hyper-V servers, install this update

Hi all,

Consider the following scenario:

– You have a Windows Server 2012 Hyper-V platform

– You  virtualized windows server 2012 domain controllers : You have Windows Server 2012 domain controllers as virtual machines on this platform

– The host that holds the DC VM crashes (Power Outage) or an unplanned restart occurs.

– You start the hyper-V host and start the VM, or the VM is started in another Hyper-V host (cluster case)

– The DC VM may not start and the DC database may be  corrupted

FIX

Install the kb2853952 part of the July 2013 Windows Server 2012 roll-up update kb2855336

More

More explanation here

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