Well AVG is anti virus and Zone Alarm is firewall so they are OK.
MalWareBytes and CCleaner both search for malware so they are OK.
A-Squared I had never heard off, but a search in the web shows it does anti virus and anti spyware.
IF it does anti virus and you already have AVG anti virus that is NOT a good idea, running 2 AV products.
It may be worth going into the Windows security centre and seeing what products Windows thinks are providing security.
You can find the security centre in the Windows Control Panel.