PrinterOn installation prerequisites checklist:

Before you begin, verify that you and your system are prepared for the installation process by making sure you have met the following prerequisites:

Your computer is running Windows Server 2008 R2 or Windows Server 2010 R2. For more information about which editions of each Windows Server are supported, see Required software.
Your Windows User Account is set to log on as local administrator and uses a non-blank password.
You have logged in as this user prior to starting the installation.
All Windows Updates have been performed.
Your computer has Internet Explorer installed.
IIS (Internet Information Services), if installed, is disabled.
Microsoft SQL Server is not installed on this computer.
Port 443 on your server is not currently in use by other services

For a complete list of system requirements, see System requirements.