Lync 2010 upgrade to 2013

Good afternoon,

We have been evaluating Lync 2010 Standard edition for more than a year now. It was our intent to roll this out company wide (approximately 250 employees) but other project kept getting in the way. We have a small number of people testing Lync, maybe 10 or so.

Now that Lync 2013 has been out we want to upgrade to Lync 2013 before deploying this to all of our employees. I'd really love to do an in place upgrade, but I don't think that's possible. I'm really looking for the simplest upgrade path for us.

What is the best upgrade path? I don't care if we have to start over as there have been very little customized settings we put into Lync. We're only using it for IM and nothing more.

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Cliff GaliherCommented:
In-place upgrades, as you suspected, aren't allowed.

The "simplest" path would, given the description of your current use and plan, would be to uninstall everything and just do a fresh greenfield deployment of Lync 2013. Migrations are certainly possible, and if this were production, even recommended. But they are also slightly more time consuming. If you do decide to go that route, TechNet has official migration documentation.
If you don't have to reuse server resources (e.g. virtual machines) then there is no need to uninstall and redeploy.  Just install the new 2013 servers in to the same topology and then decommission the 2010 servers after all users have been moved to the new pool.

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tpitch-ssemcAuthor Commented:
Decided to go with the migration method. Setup new VM and moved users to new box.
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