On-access causing problems

I’m running Avast Home Edition and I am having some problems with the on-access scanner. It is causing my computer to crash. This is happening about 90% of the time when I try to read from a certain DVD-R disc. The other 10% of the time the computer just can’t read from the DVD but there is no system crash. I have also had similar system crashes at 4 occasions without this DVD in the drive. There is never any error-message, the computer just freezes for a second and then reboots.

If I stop the on-access scanner I am able to access this DVD disc without problems. Actually it’s enough to stop the on-access scanner once and turn it right back on and after that it works fine. I run Windows XP SP 2 and I have Zonealarm free firewall. I have scanned the DVD for viruses but none is found. I have also tried updating Avast but it’s still the same. Disabling Zonealarm also doesn’t help.

Any ideas what’s causing this and what I can do about it? Any suggestions is appreciated.

Can you post the file names in that DVD?

The best advice for you, in my opinion, is to copy the error number on the blue death screen. Then Google parts of it to see if any related problem is on the Internet. If you want, you can post the error message (numbers, etc.) here in forums too.

Besides Google also you can use:
MS knowledgebase: http://support.microsoft.com/search/?adv=1
Free memory tester (Run it overnight): http://www.memtest86.com/
XP error explanations: http://www.xptuneup.com/xptuneup_stopmessages.htm

Are you using Windows XP?
If so, please, go to folder \windows\minidump and send the newest (recent) .mdmp files for analysis.
Better if you can compress (zip) them and add some information about the BSOD and the link for this thread. :wink:

Send an email to vlk (at) avast.com

I’m not getting any error messages and no BSOD. Just a quick (1 sec) freeze and then it just restarts. I have tried booting Windows with the “Disable automatic restart” option but the computer still restarts when the error occurs. I do not have any minidump-folder in the windows-folder. There are no .mdmp files at all on the computer.

How are you searching if you can’t boot?

There is no problem with the computer until I try to read from this DVD that I have. However, if I close on-access and turn it on even this DVD works fine. It also works if I open the on-access scanner window before attempting to read from the DVD. The problem only occurs when on-access scanner is working in the background after being automaticly started by windows.

Anyway, this is what the errorlogs from Avast looks like.
Application: 1928 Description: AAVM - scanning error:x-AavmCheckFileDirectEx:avfilesScanReal of D:\D3.part1.exe failed, 0000001E.

Please check the folder C:\Windows\Minidump. Does it contain any files? If so, please a couple of those to my email address.

Thanks
Vlk

There is no Minidump folder.

Maybe not turned on?

http://www.memecode.com/docs/minidump.php

It’s turned on but I have no Minidump folder.

It all sounds like a hardware problem to me.
I mean, the system is not supposed to reboot just like that…

Maybe you could also try running an anti-rootkit tool, maybe it will find something odd…

You can see this: anti-rootkit applications. I suggest AVG or Trend Micro RootkitBuster.

Anything in the events log?