Noob trying to follow this walkthrough

[slyexe]

This is probably in a mini PC is my guess which doesn't have a GPU. You'll more than likely damage your unit if it is since it most likely doesn't have a fan and only a heatsink. Eitherway, read the front page and the requirements for hashcat and it'll solve all your issues. 

• Intel CPUs require "OpenCL Runtime for Intel Core and Intel Xeon Processors" (16.1.1 or later)
  

Good luck.