No icon, no dectection by security center.

Avast Free Antivirus / Premium Security
1

I installed Avast Home Edition on a used computer I bought which has Windows XP Pro on it. It also had McAfee installed which I uninstalled and replaced with Avast.

I now get a message box when the computer is booting up saying something like “you have upgraded your operating system and Avast won’t work on this system. Avast needs to be reinstalled.”

I downloaded Home Edition again and reinstalled Avast, but I continue to get this message box, plus I have no Avast icon showing in the system tray. And, the Windows Security Center is not detecting a virus protection program. However, I have used Avast to scan the hard drive, removable media, and certain files and it works fine then. Anyone else have a problem like this or can offer advice as to how to troubleshoot this problem?

2

Aren’t you running the avast setup program in a compatilibity mode? (compatibility with some other OS, such as Win2K)

3

Did you change your system file from FAT32 to NTFS after avast has already been installed?

4

Welcome to the forums, ronz. :slight_smile:

Also, are you sure you completely uninstalled McAfee … including registry entries?

5

Hello, I am looking for some help on the same topic. I used Norton Antivirus 2007 before. Used the uninstall/remove software functions. Yet no Avast Icon in the system tray and the same message saying I upgraded my system and that Avast won’t run.

Can anyone help? Thanks

6

A link worth looking at, which is a program removal tool that can remove the remnants of a number of different Norton Programs:
Removing your Norton program using SymNRT

7

About a solution when Windows Security Center does not recognize antivirus:
http://forum.avast.com/index.php?topic=23457.msg193534#msg193534

ronz, the original poster, never come back to say if the solutions work, to thank… I hate this… :stuck_out_tongue: