Newb Problem , Nvidia

Hey guys, greetings from germany
i got a problem.
my laptop has a Intel(R) HD Graphics 530 and a NVIDIA GeForce GTX 950M.

i followed several tutorials

http://www.yourownlinux.com/2015/04/how-...linux.html

and

http://de.docs.kali.org/general-use-de/i...-fuer-kali

However..i stuck if want to boot after i entered commands of the second tutorial  i cannot login even more.

Is it possible that my virtual machine somehow dont use the GTX950 ???

i have snapshot to set it back to the status after i downloaded the nvidia-linuxdriver64bit.run.

how should i proceed ? I dont get it, maybe i dont see forest full of trees.



EDIT:

i also added a blacklist gedit /etc/modprobe.d/blacklist.conf /etc/modprobe.d/blacklist.conf

# Necessary to install nvidia drivers
blacklist nouveau
blacklist lbm-nouveau
blacklist nvidia-173
blacklist nvidia-96
blacklist nvidia-current
blacklist nvidia-173-updates
blacklist nvidia-96-updates
alias nvidia nvidia_current_updates
alias nouveau off
alias lbm-nouveau off
options nouveau modeset=0




I followed these stops until now:

apt-get remove --purge nvidia*

sudo apt-get remove --purge bumblebee* <----- ( bumblebee ? this was for ubuntu what should i write here? )

sudo apt-get --purge remove xserver-xorg-video-nouveau

sudo apt-get install linux-source && sudo apt-get install linux-headers-$(uname -r)

gedit /etc/modprobe.d/blacklist.conf /etc/modprobe.d/blacklist.conf


# Necessary to install nvidia drivers
blacklist nouveau
blacklist lbm-nouveau
blacklist nvidia-173
blacklist nvidia-96
blacklist nvidia-current
blacklist nvidia-173-updates
blacklist nvidia-96-updates
alias nvidia nvidia_current_updates
alias nouveau off
alias lbm-nouveau off
options nouveau modeset=0





What should i do now?

sudo apt-get install nvidia-XXX-updates nvidia-settings

for xxx i entered 346.59, but it didnt work, also only 346 didnt work.

i dont get it :/.

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