avast and vista

Avast Free Antivirus / Premium Security
1

Hello everybody and sorry for my english

when i run avast, i can see an error on screen:

C:\Program Files\Alwil Software\Avast4\ashAvast.exe is not a valid application of Win 32

what I can do?

I still use windows vista and I downloaded Avast from web site

2

i would suggest a clean installation of avast!

  1. uninstall avast! via the control panel
  2. use the uninstall tool (http://avast.com/eng/avast-uninstall-utility.html)
  3. restart the computer
  4. reinstall avast!
  5. restart the computer
  6. it hopefully works now…

yours
onlysomeone

3

This error message has cropped up before and it is possible that your system is infected (Beagle) and it is directly effecting avast.

This however shouldn’t happen (more difficult) with the latest version of avast which has a self-defence module.

So what version of avast do you have, the latest is 4.8.1201 ?

4

Indeed, there are some variants of Bagle/Beagle that corrupts the latest avast versions.
Alwil team had to choose a balance between a hardened self defense module (and incompatibilities) and protection.