Pre-boot operating system greyed

Hello,

I'm currently studying Ghost Solution Suite 3.1 for a lab in my classroom.

During the installation of symantec Ghost Solution Suite 3.1 section PXE Server information.[File attachment]

The checkboxs for Pre-Boot operating system selection are greyed.

-Windows Server 2012R2
- ADK 8.1
-Server SQL 2014 Express
-Symantec_Ghost_Solution_Suite_3_1_v1.exe

Do you have any solution to solve this problem please?

Kind regards,

Filipe