Download NVIDIA that suitable with your computer
Download from NVIDIA Website
$ sudo chmod a+x [nvidia_filename]
press Control+ALT+F3 (Sudo init3)
$ sudo apt-get update
$ sudo service lightdm stop
$ sudo ./[nvidia_filename]
follow the instruction, usually just click YES.
REMARK:
If you have a problem with nveuau
$ sudo nano /etc/modprobe.d/blacklist.conf
# this one might not be required for x86 32 bit users.
blacklist amd76x_edac
blacklist vga16fb
blacklist nouveau
blacklist rivafb
blacklist nvidiafb
blacklist rivatv
# close the editor and back to your terminal
$ sudo update-initramfs -u