Avast Hangs Vista when going online.

[sfaizan]

Since yestrday when I reopend my laptop and as soon I connected on internet my whole pc hangs and not even ctrl+alt_del working. I cheked several times and came to conclusion that as soon as I connect to intrenet vista hangs, then I disable the avast and restat the PC its working fine. Anything that I can chek in avast so that it works properly. I have avast 4 free ver and using it more than a year till I face prb yestrday.

Faizan.

[Pondus]

Check your computer for Malware with

Malwarebytes Anti-Malware 1.46 http://filehippo.com/download_malwarebytes_anti_malware/
always run update before scan so you have latest database
click the remove selected button to quarantine anything found
if anything is found you may post the scan log here

[sfaizan]

Nope no malware, I chekd everything, some issue with avast, when I disble avast the pc runs fine.

[Pondus]

and you have removed any previous installed antivirus or antivirus that was delivered with the machine when new ?
and you have run a removal tool for those programs removed so all traces are gone ? if not you find it here http://uninstallers.blogspot.com/

And why not try the new avast 5 ?

Avast! Free Antivirus 5.0.594 http://filehippo.com/download_avast_antivirus/

[sfaizan]

I have been using this machine for last one year without any problem since avast issue came up. I formated this machine when bought and the only AV i installed was avast and it was working fine. Dont know as soon as wifi or ethernet cable is pluged and internet connectivity is up system hangs. I have to stop all services of avast and now installed another av provided on cd with the system due to no choice. I didnt removed avast yet still trying to find the problem.