Check in device manager, if the printer is listed there, please delete it.Uninstall the printer from 'programs and features' which can be accessed by doing a right-click on the Windows button (Please have the printer Off and disconnected during uninstallation.).If you are still unable to access the printer assistant, please follow the procedure mentioned below to remove the printer software and settings and install it back. This should resolve the issue you are facing and will be able to use the printer assistant. If you see the option that says set up the device, click on it and complete the setup. The usual option that comes is 'setup the device' if the software was updated. Sometimes if the printer assistant is updated, you would have to reconfigure it. The Icon on the desktop of your computer is called printer assistant.

Have you tried to complete the setup when you launch the printer assistant? Have you tried any troubleshooting steps on your own? Not to worry, I will be glad to assist you. I understand that you are unable to access the printer assistant on your computer, is that right?

Printer icons windows 7