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You need to use custom clusters for windows nodes. https://ranchermanager.docs.rancher.com/pages-for-subheaders/use-windows-clusters

Thanks David, we tried custom clusters, and it works. But is there a way to attah windows node to already deployed ec2 clusters? May be to generate a token from already deployed clusters and attach Windows node through bootstrap command?

Via the EC2 node driver? I don't believe so

When we create a custom cluster we get a bootstrap command to attach windows nodes, in that command -cachekum is same for every cluster, rest are the packages to install and the only thing different for each cluster is -token. Do you think is there a way to get that token from alreay deployed ec2 cluster provisioned by rancher?

There is a round-about way to achieve what you’re asking, but it is not supported. Even if you managed to get it working, there is no guarantee that it would continue to work. I don’t know the exact steps, but you would have to create a cluster registration token for the cluster you’re trying to add these nodes to and reconstruct the windows registration command from there. That is likely to work with some possible adjustments, but I don’t recommend trying this.

I agree with @big-hydrogen-97240 . Even if it works, we should not use such a solution for production.