Comodo firewall (free) forgets all of my settings on reboot

Comodo firewall (free) forgets all of my settings on reboot–and by this I mean all the things I allow or disallow–I always must start from scratch.

Also, if I may, plan on reinstalling windows–which files should I keep from comodo so as to not start everything over (my settings–allowed/disallowed stuff)?

thanks in advance

Mich