66 days is pretty good. James posted one of 180-190 days a few months back. But Hyper V is pretty reliable. I had around there too but I upgraded the memory from 32GB to 64GB in mine. Now I'm at 30 days. Either way, your VM's running windows will need to restart (updates) and if you're like most practices, you'll probably have only one VM to host on your server.

The main benefit of virtualizing is flexibility. You can move to new hardware easily (that means restores are easier since you won't need some special discontinued motherboard for your Dell Server to be up and running). There's also replication and many other benefits.

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