How to uninstall Exchange Server 2010 from SBS 2011 This tutorial explains how to uninstall Exchange server 2010 from an SBS 2011 if you are migrating to Windows Server 2012 R2 and Office 365. In a previous tutorial, I explained how you can ‘rip out’ all Migrate from SBS 2011 Standard to Windows Server 2012 R2 Essentials but as we all know that could cause problems.