Hello Fleits!

On this article you will find some troubleshooting steps, they might help you.

If you need further assistance let us know.

no help for that, i send a picture what BSOD errors are, my second GPU Nvidia arent still in the list only intel hd 4000 working 

the picture is here : http://www.upload.ee/files/3665370/BSOD.jpg.html

and Bios says discrete graphic 1  NOT DETECTED so my alienware thinks that i dont have a nvidia graphic card :S

Hi fleits, I hate to ask a stupid question, but have you tried hitting the function (FN) and F7 button to force the computer to boot with the nvidia GPU

as it looks like it wasnt a stupid question at all, no i havent tryed that, will try it then will let u know, from know the thing is that i have only black screen nothing will work anymore when i tryed installing dells factory gpu driver

this fn and f7 doesnt work dont know anymore what to do

cant get in to windows anymore that issue is seroius

If you fell comfortable you can try resetting the video card, if not, send me a PM with your sevice to check if there is something else I can do to hep you.