Ok, I'll do it. Even if the sound doesn't work again I'll try it. 🙂 So, in order to do it, what I should do? Get Windows *.iso on a flash USB drive, with all Windows support included, select BOOTCAMP disk as a startup disk and format BOOTCAMP partition? Or I should format BOOTCAMP on Disk Utility (on Mac OS X) before? Sorry for these dumb questions, but I just want to do try it the right way, now. 😝