Avast Quarantined Sound Driver Files/ No Sound

Hey all.

First time poster.

I had a problem with Avast earlier today. I was surfing the net and it popped up and said it blocked a virus attempt which is all well and good. A bit later I decided to play some Team Fortress 2 and about 10 minutes into the game my computer froze up and needed a hard reboot. Then, when it loads back into windows, I have no sound! I check the wires etc… to make sure none are loose or anything and they were all fine. I checked what exactly it was that Avast blocked and quarantined and it was a bunch of seemingly safe sound driver files. I tried restoring them from the Avast menu - still no sound. I tried reinstalling the driver, which Avast pops up every time and tries to block so I temporarily disabled it, and still have no sound. I tried system restoring to yesterday when the sound was fine - still no sound. Someone please help me out here so I can get my sound working again.

If you need any system specs, let me know.

The only things I can think of that would be pertinent to this would be:
My soundcard which is a Soundblaster Audigy 2ZS
I’m using fully updated Windows XP with SP3
I’m using Avast Free version 5.0.677
Definition version 101007-1

What was locked in the Virus Vault:
A0090529.sys C:\System Volume Information_restore{C65A7B72-2294-4705-9452-EC4DA0427F16}RP182
A0106721.sys C:\System Volume Information_restore{C65A7B72-2294-4705-9452-EC4DA0427F16}RP192
CTAUDFX.sys C:\WINDOWS\system32\drivers
ctaudfx.sys C:\WINDOWS\temp\CRF000\Drivers\wdm\win2k_xp\i386
ctaudfx.sys C:\WINDOWS\temp\CRF001\Drivers\wdm\win2k_xp\i386
CTAUDFX.sys C:\WINDOWS\system32\drivers
CTAUDFX.SYS C:\WINDOWS\SYSTEM32\drivers

Well, I uninstalled Avast completely then reinstalled my drivers and now I have sound back so I fixed my own issue. Gonna try AVG and see if it quarantines my sound drivers.

I am having the exact same problem, with the exact same setup. It just happened to me today what are the odds.

I ran dxdiag to check something and avast said I had a virus. I then ran a boot scan and moved ctaudfx.sys to chest when it popped up.

Currently I have no sound.

Either the sound driver I downloaded off creative’s webpage has a rootkit in it or this is a false positive.

Edit: I am treating this as a false positive

I got my sound working again by installing the latest driver,
http://support.creative.com/downloads/download.aspx?nDownloadId=11314
and disabling avast while installing the driver.

The sound card still shows up as unrecognized hardware every time I restart windows now, but it seems to be installed properly I have sound.

Yesterday I had same problems, lost audio drivers, system restore has helped

Audigy2 + Avast Antivir + WinXP SP3

Hello,
send the file to virus@avast.com and put “False positive” to subject, please.

Milos

Hi,Milos!
Driver is sent

I was having a similar issue where I would get stuck playing Team Fortress 2 and Avast would say hl2.exe was malicious content. In the ‘settings’ options there is a ‘global exclusions’ tab and I copy and pasted the location of my Steam.exe into the little blank space where you can add a file location under global exclusions and I haven’t had any problems since. Hope this helps. Cheers.

Thanks.

Welcome to the forums!

But as you are replying to a thread almost three years old, suggest such a helpful post would be better served by creating your own topic, and linking this one to your new one.

Cheers! ;D

Otherwise, it might be ignored or worse.

BTW, many instances of steam executables getting blocked temporarily by avast! in the past, so…