I did as you suggested Pondus, and at the end got an "Installation Failed" message, but after that there was still a screen saying I needed to reboot to save the changes made. Rebooted and still get the popup saying my Avast is expiring in one day. I will mention that I also have Avast Free edition installed on this laptop, I don't know if that is interfering. The popup screen specifically says Avast Pro is expiring.