markyzno
*whispers*
This thread really does smell of "TOO MUCH TINKERING"
Okay, that's what I thought. Just a lot of big werds and fancy book lerner stuff going on and thought maybe it made sense to all the smart folks.
I'm all for being inquisitive and adventurous when it comes to system fiddling but you gotta a) do your research BEFORE beginning and b) have an escape route or multiple escape routes (*cough* system image *cough*). BIOS stuff? Well that is getting into dangerous territory but AFAIK newer and perhaps older BIOS utilities have reset functions so hopefully that can restored too... but IDK.
Vlad, you have learned quite a bit through all these adventures. If at all possible just go back and start over. It will make more sense the second time around and you'll probably find a large percentage of the tweaks you made were unnecessary. Start, create an image, test, create a restore point, tweak if need be, repeat. Keep track of your restore points and give them names that makes sense (and up the disc space available for restore points or you will the older ones as you go along... there is for some stupid reason no way to save restore points).
Once you find a set up that works for you create another image. That way if something goes wrong you can can go back to the very first image you made (just installed windows and updated all system drivers like USB, network, BIOS, video card, etc), second image you made (just installed basic function programs like a browser, AV, PDF reader for manuals, crap like that that is needed for basic functions), then a third with your most essential audio stuff installed (interface drivers, Sonar). Now you have clean slates to go to. THEN start adding your other device drivers and testing things out. Go nuts. Abuse the hell out of the system. Use restore points during these tests until you get things running smoothly with everything you will be using regularly and create a final image.
It may sound like a pain but by having all those images and making use of restore points as you fiddle around will pretty much guarantee that if you can't resist poking around the dark corners of your system you will always have an easy path back to safe territory.
You can use can use Windows recovery for all this (but not with XP or earlier) or get a program called Acronis True Image (which I think you have to pay for) or Macrium Reflect (which has a free version that is suitable for this type of thing and I've used successfully).
BIOS however is a tricky beast and AFAIK will not be affected by images so if you screw up your BIOS you have to take different methods to fix it. Also I think that Windows and the images/restore points you create will be effected by the BIOS so if you have a screwed up BIOS those images may be worthless... but I am not sure about that.
This perhaps seems preachy or redundant but the types of things you have been doing to your system can have dire consequences and it all seems to be spinning out of control for you. Not good. You should be making music.
Good luck.