Your first response to me is 'LOL' yet you seem to have an incredibly small understanding of malware and its prevention and removal.
Comodo on its own is fine, your problems started before you even installed it. Since Comodo runs a sandbox, and Defense+ with default deny, nothing can or will get past it even if there is no signature for a particular piece of malware, and even if it gets past the heuristics. That's what makes it so effective.
In your case you should either format the drive and start again (there's no need for secure erase or second drives), or take it to someone who knows what they're doing. If you're that worried about malware that you can't live without ten different scanners then maybe consider installing Linux when you reinstall your OS.
Comodo on its own is fine, your problems started before you even installed it. Since Comodo runs a sandbox, and Defense+ with default deny, nothing can or will get past it even if there is no signature for a particular piece of malware, and even if it gets past the heuristics. That's what makes it so effective.
In your case you should either format the drive and start again (there's no need for secure erase or second drives), or take it to someone who knows what they're doing. If you're that worried about malware that you can't live without ten different scanners then maybe consider installing Linux when you reinstall your OS.