Unable to open system cleaner

I updated my Comodo system cleaner and now it will not run. It pops open a box that states “has encountered a problem and needs to close.”

What can I do to fix this? Thanks!

Try uninstalling it and then install using the installer of the latest version.

I upgraded and it will not open, removed and downloaded latest, still will not go. I left pc tools for this?

if u have vista/7 try to disable uac - reboot and try it now