removal

??? from the add remove program I can not uninstall avast what’s going on here.

  1. Uninstall avast from Control Panel first and Boot (if fails, like you’ve said, continue…)
  2. Use Avast Uninstall for complete uninstallation (read http://www.avast.com/eng/avast_uninstall_util.html)
  3. Boot
  4. If you really want to be sure of a complete registry cleaning, could be useful one of these Registry cleaning applications:

RegClean for Windows 98 (but works on XP)

BeClean Specially the Registry Cleaning feature
But the best, you can make a download for try, is PowerTools. Very powerful registry power tools, with lots of extra options. Unfortunately, it’s a shareware. You can run it before the expiration time and get rid from the previous antivirus application. You can choose an option for backup of the removed itens.

You can install again by this command on the folder you’ve donwload and save the install file: setupeng.exe /forceinstall
Where setupeng.exe is the name of the executable.

Do you mean there is no uninstall option or having selected the Uninstall option it fails?

If it fails are you getting any error messages, if so what?