Creating boot image

[Murof]

I've followed the installation guide and everything finished fine, however when I boot into a device either using a USB stick or PXE the program fails because Powershell is not installed on the windows image. There are a few errors and they all relate to powershell.
How do I get powershell into the image - or is there a way to get windows PE with powershell included?
I downloaded the files from the link provided in the install guide.

Thanks in advance for any help