Updating Creative Cloud desktop sync app

Trying to update desktop sync app. Once downloaded, 12% into the installation I receive the following message. "Please close the following applications to continue: (Adobe Creative Cloud Connection.exe).

The problem is I don't have anything on but the installation program and the Adobe Application Manager. If I close the application manager, I loose the installation. I have closed it out several times and have restarted my computer but, I can not proceed beyond this point.