If you can use google, then:

https://www.youtube.com/watch?v=VgK8dhKmxc0

In comments there is a link to the modified exe:

https://github.com/laytoneverson/XmrStakBuild

Looks like, it is enough - just to replace xmr-stak.exe file.
And you got 0% miner.

To me author seems trusty, because of public available info and family photos.. (of course that can be stolen identity, but i don't think so..)


Just saw, that github link are down, yesterday it worked.
Uploaded just exe (config file contains author personal info, maybe thats why he removed..)

https://files.fm/u/9np9px5c  (will be available 2 months from now)