So to get my video card working properly on my computer I have found some "hacks" and software that I need to install. How do I know if these hacks are safe or not? Its nothing against the author of the hacks, I am just wondering generally how someone would know, or if we are suppose to just trust that everything is fine.

For example I am suppose to install code from and do various things based on this post

I would appreciate any thoughts. I hope this post does not offend the creators of that code/steps. I am just covering all my bases.