Annoying pop-up box from tray

I successfully updated Comodo Firewall v.3.14 last week on two machines but every time I boot up a short while after I get this annoying pop-up from the tray announcing that CIS v.4 is available. I do not want to install that at present.

I there an easy way of stopping this pop-up?

Thanks,

Mike.

“More…” > “Settings” > Deselect the option to “Automatically check for program updates”

Many thanks
Mike.