Time Sync - Hyper V clients in a cluster

How can I disable Time Synchronisation from Host on all my Virtual machines being controlled within a cluster on Hyper-V and SCVMM R2. I untick 'Time Synchronisation' in Integration Services\Hyper-v but the tick box just reappears which I think is something to do with being in a cluster?

My domain time server is synching with the 'VM IC Time Provider' rather than my choosen external source.
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Did you have a look at this

I haven't test this myself, but there is something promising here too. Caution: it involves registry changes which I think you should test first if you can. On plus is that it is from microsoft guys themselves.

PeteAuthor Commented:
It is a bug in SCVMM, if I made the change to disable time integration from within Cluster Manger the change is retained.

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Glad to hear that. I would suggest keeping the thread without assigning points or 0 points, so if anyone else runs into this, this would be helpful.

mybad, i misread you comment. You already have asked to close the thread.
apologizies once again.
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