- Create Partition with clean install of latest mac OS (sierra)
- Install/Configure the partition with desired applications, such as firefox or chrome, and files/documents you wish to be included on the image.
- Navigate to other partition on the same hard drive
- Open System Image Utility
- Under Source, select the partition you just created and loaded with apps/files.
- Follow instructions, make sure to select NetRestore, then the image will start to be created.