I have a server with Windows Server 2012 R2, Hyper-V installed on the physical host and 2 virtual machines. One VM has Windows Server Essentials Role installed and is the domain controller. The other VM is for my applications such as SQL Server Express, Order Management, etc. Also, there are currently 5 desktops in the environment running Windows 7 Pro.
What antivirus product would you recommend for this environment?