Hi EAGLEWI

Please try this

avast! GUI → Settings (top right corner)-> Troubleshooting-> Updates-> make the settings for both
1)Engine and virus definition
2)Program updates

Automatic update

For update parameters : My computer is always connected to internet

Proxy settings: Direct connection (no proxy).

Then please don’t forget to click “ok” there

Try to update the program and reply back…

Hope this will work.