Adobe Digital Editions will not launch/open

A couple of days ago, Adobe Digital Editions decided not to launch/open, when previously I used it pretty much daily without fail. Since then, I have uninstalled and reinstalled - but it still will not launch/open. Yesterday and the day before, my laptop froze completely when I attempted to do. Today, my laptop hasn't frozen when I've tried, but it still WILL NOT LAUNCH/OPEN ADE. Have tried via Desktop icon and Start Menu. Still nothing.