Does doing this sound like a good idea?

[Shadowth117]

That depends, what are you trying to accomplish?

Mainly I want sound to work in Safemode and well I'm wondering if this sounds safe

...

Anyways, to me it looks pretty legit to be honest, but there's always a risk with these things. I'd look for a similar guide elsewhere and see if it says similar stuff first though. If you can find one on a totally different site with that says pretty much the same thing than it probably does exactly what it says it does.