Message when starting Avast 4.8

When I start Avast, by clicking on the button, a message appear :" enter a password."
Why ?
What does it mean ?
Thanks

We will need more information to be able to help you:

  • Which OS are you using? Is it up to date?
  • Do you use a firewall? Which one?
  • Do you have any other antivirus installed in your system? Did you have in the past?
  • Any other security programs that could interfere?

Please, post a screenshot (see how: http://forum.avast.com/index.php?topic=8982.0).
You can use Gadwin PrintScreen to get a screenshot (http://www.gadwin.com/printscreen/) or the free version of WinSnap 1.1.10 (http://www.filehippo.com/download_winsnap/?2173).
It’s strange, it does not seem to be an avast message…
Are you trying to start the antivirus or change the Program settings?

Hello
My OS is XP (SP3). I think it is up to date.
I use SPYBOT, but no firewall. (Except the XP one), and no different antivirus, only Avast 4.8.
In the past, I used Norton Antivirus, but I uninstalled it for a long time. and formatted my hard disk since.
The message appear when I start my Antivirus

Seems that someone with admin rights set a password on avast!
The easier will be uninstalling and installing it again.