Was following mining.help 's guide, wondering if the batch file by author, "jsanzsp" to optimize windows 10 installation is safe

The batch file for windows 10 registry tweak/optimization in question by jsanzsp can be found here

https://mega.nz/#!8gZzjQaa!Dt4wE0WEo8nZkui_-cAAXL4mb4YlO6CJgFZTXKq9pnQ