I have been watching the progress of the Comodo Anti Virus beta testing for some time now. There is no way I could consider myself to have the experience to be a beta tester.
However they have today released the above version for general use and I have installed it. I had been well satisfied with Avast, however Comodo, whose Firewall I have used since having problems with Zone Alarm, seem happy to supply Pro versions, at no cost for personal users.
So far all is running smoothly except that Windows Security Centre cannot recognise it. I have turned that off for now.