In the Apps tab of the Creative Cloud desktop app, applications are not listed as installed. Or, they are listed as installed, but are not located in the Start menu or the Application folder.
Solution
In the Creative Cloud desktop app, click Sign out from the Profile menu.
Quit the Creative Cloud desktop app:
Version 5.0 and later: Press command+Q (macOS) or Ctrl+W (Windows)
Version 4.9 or earlier: Click the three dots vertical icon in the upper-right corner of the Creative Cloud for desktop app and choose Quit.
Navigate to the following location and rename opm.db:
macOS: Macintosh HD/Users/[user name]/Library/Application Support/Adobe/OOBE