If you will install Windows 7, be sure the bios settings set as Legacy.
If you install Windows 10, you will need to set as UEFI
A blog about Operation System Deployments as SCCM 2007 / 2012 and Windows 7 / 10
A blog about Operation System Deployments as SCCM 2007 / 2012 and Windows 7 / 10
If you will install Windows 7, be sure the bios settings set as Legacy.
If you install Windows 10, you will need to set as UEFI