Remove Cluster

Hi,

I'm having some minor issues after upgrading VMM from 2008 R2 to 2012 SP1.

The issue of relevance here is some VM's are displaying twice in the console and I want to remove the 6 node 2008 R2 cluster and add it back in again.

My question is if there is any risk of this causing an issue to the live running of the 2008 R2 6 node cluster?

Can I simply right click the cluster, click Remove and then go through the Add New Cluster process to add it back in again?

Thanks