Need help in uninstalling the Firewall

i know there is a thread about this but i wanted to know if the comodo registry cleaner is good to use to get out the extra registry entries that are left behind. also should i use the uninstall that came with the firewall or use the control panel add/remove and should i use the registry cleaner after i uninstall but before i reboot the computer or should i uninstall, reboot, and use the registry cleaner?

Uninstalling in safe mode works good.

You can also use something like:

COMODO registry cleaner will also get some keys out too. I like to reboot after the uninstall and run the reg cleaner and then reboot again.