1. thank you for the advice. i tried to reisntall, this time with natix kext and it worked in safe mode (-x). But now my question is, what can i do to make it work normally.

2. when i'm in -x mode i don't have network working, is there a way, i told you i'm a noob, to install drivers for the network and audio so that they work. something like Device Manager in windows?