And the problem still exist.

ver. 8.0.1489 avast! Free Antivirus

Previous AV’s:
avast! Internet Security - un-installed and cleaned with avast un-installing tool

After installing this free ver. I cannot register due to error and no engine updates are available.
avast! Antivirus service is not running and cannot start (starts and stops right away).
Only procces currently running is AvastUI.exe


Please help