downloading comodo

a question for your tec people. i have downloaded comodo firewall and anti virus. after i press run this program windows comes up with a message saying it cannot open this and maybe i dont have permission?? whats this all about? and can somebody please help me.

Hi diane123

Welcome to the Comodo forum

Can you give us a bit more information on your computer. What is your OS?, Are you running as an administrator or a user?, Can you give us the exact wording of the message box? What security applications are you running?, Did you disable them before attempting the installation?

Here is a helpful link for you to follow to get the information to us that we will need to help you.