Bonjour SafeSurf,
I never installed Bit Defender in my PC, nothing in the Add/Remove Programs window about Bit Defender.
For the last hours, I uninstalled and installed Avast two times more, according to your procedure. The result is always the same, it is impossible to activate anything, impossible to update, impossible to register with the key I received from Avast (“Invalid key” !!!).
The main window of Avast displays 5.0.0 version. The setup file version is 5.0.594.0.
(I downloaded 3 setup files 5.0.594.0 of different size !!! the result is the same with the 3 files.)
I can't save parameters, when I come back to the parameter window none of the parameters I modified is saved.
The main window says “Not secured”.
See 2 images
http://dl.free.fr/fwM0K97poThe Avast orange icon has a blank “X” inside a red circle.
I am using Windows Defender. I performed a full system scan
I installed MBAM and used it → second time OK. I just performed a new scan → OK again.
I always accept updates for Windows XP. I just ran Windows Update → no recommended update, only optional updates.
I installed Avira AV, it runs well. I uninstalled it.
Yes I need an AV, and I would like to be able continue to use Avast !
Pierre