Uninstalling AVG free

I need to uninstall AVG free and download AVG Ultimate.  When I try to uninstall using Control Panel, I get a message "Setup is already running. Please try to start the setup later".  Nothing seems to allow me to get past this message....repeated efforts to uninstall always arrive at this same message.
Hi Joel,

We're glad to help you with this.
It isn't required to remove the existing AVG Free version in order to install,activate AVG Ultimate.
AVG Ultimate is a bundled package which includes AVG Internet Security, TuneUp for Windows. These programs can be installed separately.
However, it seems that a setup is already running in the background. We need to either kill that process from task manager or restart your computer. If you wish to perform a clean installation, we're glad to help you with the steps. Please let us know how you'd like to proceed.

Hi Joel,

We're glad to help you with this.
It isn't required to remove the existing AVG Free version in order to install,activate AVG Ultimate.
AVG Ultimate is a bundled package which includes AVG Internet Security, TuneUp for Windows. These programs can be installed separately.
However, it seems that a setup is already running in the background. We need to either kill that process from task manager or restart your computer. If you wish to perform a clean installation, we're glad to help you with the steps. Please let us know how you'd like to proceed.