I have Windows 7 x64 and Kaspersky Internet Security 2010 too. And I had the same error "Failed to initialize database cluster..." when I was installing PostgreSQL using one click installer. I tried to remove Kaspersky but that didn't help. Then I tried to install PostgreSQL using pgInstaller as recommended in manual:
http://www.pokertracker.com/products/PT ... greSQL.pdf When I click "Next" in "Initialize database cluster" window the message "The 'Secondary Logon' service is not running. This service is reqired for the installer to initialize the database. Please start this service and try again" appears. What is the 'Secondary Logon' service and how to start it?
P.S. UAC is turned off and I've logged in as administrator.