Cannot uninstall or run Audacity

I am having trouble uninstalling audacity on Windows. I was asked to update to the current version when I opened the app today. I got an message that another version of Audacity was running when it is not. I tried uninstalling and re installing and got a message that another version is open on Audacity Cross-Platform Sound Editor that needs closed before I can uninstall. I can’t find any such thing to close. Now I can neither open the current app on my computer or uninstall it. Help?

Try rebooting the computer.