Having problems with comodo freezing your pc and unable to uninstall because of this.
Refer to this
I had this problem on 64 bit windows 7. The quickest way I found to solve the problem was boot in safe mode, Create another user account. Reboot normally and open this new user account. You’ll find it shouldn’t freeze, uninstall and re-install Comodo and it should solve the problem.
This was the quickest way for me to remedy the situation.