The Comodo Forums, with over 80,000 registered users, are a great place to get answers to your Comodo product questions--anonymously.
For example “Mr. Go” asked
I've been avidly using Comodo for a while now. I think it's a great all-around computer defense. Kudos to the programmers.
I received a notice that Comodo was updating the virus database, however, when I tried scanning a file, I got an error stating, “Antivirus Engine Not Initialized.” I definitely have not switched/adjusted my settings for the antivirus, however from reading around it may be that my problem stems from my importing of my previous version's settings. The firewall and defense settings (may) need to be more specific.
Mr Go spelled out his operating system, Comodo version and virus signature database. “Fazio93” answered
look in "c:\program files\comodo\comodo internet security\scanners" for ''bases.cav''
if it's not there, go to "c:\program files\comodo\comodo internet security\repair" and look for "bases.cav" in there and drag that into the ''scanners'' folder.
When you ask a question at the Comodo forums, Comodo fans all around the world are waiting to help you.