Vista - Error when installing VGA drivers!

So here is the problem http://shrani.si/f/1r/XC/2zAyb5wY/problem.jpg
after i install driver i get this, i tried in safe mode with diffrent drivers (new, old), doesn´t work, i have xp and vista but not on same disk, so that is not the problem. My graphics card is 8800GTS 512 i tried 177.83, 177.92.. On xp everything works.

Try these:

8800M GTS
nVIDIA ForceWare X 174.31
download driver


8800 GTS
nVIDIA ForceWare 177.79
download driver

Hi sas02 and welcome to the forums

Try rolling back the graphics card driver to that which came with Vista (see the following tutorial). You will need to restart with each roll back. When you have done this, restart your PC and log into an account with administrative credentials. You should then be able to download and install the driver (link given below).
Dwarf

Device Manager - Roll Back Driver

GeForce Release 175

Tnx guys i install 175 driver, but when i tried to update it to 177.83 or .92 i get the same message .

Hi sas02,

The latest WHQL driver for your system is 175.19. There is another driver available, but it is still a Beta driver (177.92). When it receives its WHQL certification, you should be able to install it without any problems. Remember to roll back your current driver as advised in my previous post before you install it. This removes settings in the registry pertaining to your old driver which might cause installation problems for your new driver should they remain.

Ok tnx, how can i disable digitally signed code messege, because when i run riva tuner i can get in, it say the drivers for vga are not digitally singed ?