NVIDIA Graphics Driver conflict

Avast Free Antivirus / Premium Security
1

It appears that there may be a conflict between the NVIDIA graphics driver (version 260.99 and later) and Avast 5.1.889 on my installation.

I have tried installing the driver first and then Avast and also Avast first and then the driver.

If I install Avast first, reboot, then the driver, reboot, the system hangs after login at a blank screen, after this I must hard reset the machine. CTRL-ALT-DEL doesn’t do anything. After this, Avast issues a message that says it can’t update and that I should try to update it manually. If I try to update manually, it has the error “Last encountered error: The system cannot find the file specified.” Program updates also fail with the same error.

If I install the video driver first, then Avast, after the reboot the system does not hang on login, but it still exhibits the same problem with updating.

Even after uninstalling the video driver, Avast will still not update.

Reinstalling Avast does not fix the problem.

This happens with both builds 260.99 and 266.35 of the NVIDIA driver.
They can be downloaded from http://www.nvidia.com/Download/Find.aspx?lang=en-us
Just search for my graphics card listed below.

In addition, I have think this issue may also be causing BSODs on my machine.

For now I will use a different antivirus but would like to switch back as soon as the issue is fixed!

Information about my Install:

Windows 7 64 bit Ultimate
ASUS P8P67 Pro Motherboard
Intel Core i5-2500k Sandy Bridge CPU
Galaxy GTX 470 GPU

The information in my sig is for a different computer.

2

I just tried uninstalling and re installing my 260.99 driver’s and no problem at all so it must be something else other than the driver’s, did you have this problem with any of the earlyer build’s of avast or is this your first avast install, if so what was your previous av and how did you remove it?
I have noticed that in your sig you have avira and avast on the same system, if you have this same setup on the system with the problem you will have to delet one of your av’s.

3

The information in my sig is for a different computer. This is a clean install. Just motherboard drivers then video drivers, then avast. No other AVs. I can get this to repeat every time I format and try again.

4

The only thing that jumps to mind for me is that the 470 graffic’s card’s were problematic with just about everything, you’ll probably have to wait for one of the mod’s to come along as they might want you to send them a crash dump.

5

Interesting. Well I just installed the driver then avast without behavior shield and all is well. The only difference between this and my other installs is that I havnt installed windows updates yet. Im doing that now. In the other installs I did motherboard drivers, then windows updates, then video driver and avast.

6

BTW, Im just wondering… What other issues are there with the 470? Maybe I should get a different card.

7

Iv heard about instability’s, over heating, noisy fans, high power usage, certain program’s that use hardware acceleration dont like them either eg (dvdfab). The 460 and 480’s had good review’s but not for the 470’s and the 500 version’s are supposed to be awsome.
I ment to mention trying without the BhS, looks like your working through it, iv notified the mod’s about your issue anyway GOOD LUCK :slight_smile:

8

I’ve figured out the problem. Windows update was installing an older driver for the card before I had a chance to install the newer one. This time I hid the update and installed the 260.99 driver. It works now. Thanks for the help though.