Brought Avast pro in January and hadn’t realised until now that product jey hadn’t been entered. Tried doing so but after adding license key to says it will now upgrade to Avast! pro antivirus but just keeps coming up:
Error: HTTP server error returned
the same response keeps coming up as well when i try to update my current free version
The best bet here would be to install a fresh copy of Avast
Download Avast Uninstall Utility to your Desktop.
Download the correct version of Avast
Avast Free
Avast Pro
Avast Internet Security
Avast Premier
Disconnect from the net
Uninstall Avast via control panel
[]Run the uninstalltool and accept the reboot to safe mode
[]Once complete reboot your system
[*]Reinstall Avast
thankyou for your help that solution worked perfectly
My pleasure 