I just installed 2.0. I can run programs from shortcuts on the desktop (thank goodness) but starting any program from the Start menu freezes my system. Fortunately, I had a folder shortcut on the desktop and could navigate to the Comodo Antivirus folder to uninstall it. Even that froze partway through until I used task manager to stop all Comodo processes.
Finally, it’s off my system. Blech.