Acer E5-571G Windows 8.1 Nvidia 840m Black Screen

[Sandro_2]

Hi, I am new to the forum but i have seen alot of usefull solutions but none for my problema.
I have na Acer E5-571G with a intel 4400 hd graphics card and na nvidia 840m card.
My HDD broke and i bought a new on, equal to the old one but, im dumb ass and never did a backup to my acer Windows. So I downloaded a copy from Microsoft website and instal it, instal all drivers from acer website, instal them all no problem but when I instal my nvidia drive it always frezes at the instalation.
So i restart the pc and get a black screen.
I have tried all drivers from nvidia site and even from Windows update, nothing works for me.

Can some one help me?

 

[popatim]

Did you install the HD4400 Graphics drivers first?

 

[Sandro_2]

Did you install the HD4400 Graphics drivers first?

Yes i did I'm using it right now. I disabled my nvidia card while i cant find a solution for the problem