Use the Adobe Creative Cloud Cleaner tool to uninstall, completely remove all vestiges of previous Creative Cloud installations, and reinstall

In most cases, you should try other relevant fixes before resorting to a complete uninstall and reinstall.

  1. Remove all Adobe apps installed on the machine. 
    1. Uninstall apps
    2. Uninstall the Creative Cloud Desktop app
  2. Remove any remaining Adobe folders from the machine.
    1. Windows:
      C:\Program Files\Adobe
      C:\Program Files\Common Files\Adobe
      C:\Program Files (x86)\Adobe
      C:\Program Files (x86)\Common Files\Adobe
      C:\ProgramData\Adobe
    2. Mac OS:
      /Library/Application Support/Adobe
      ~/Library/application Support/Adobe
  3. Run the Creative Cloud Cleaner tool on the machine:
    https://helpx.adobe.com/in/creative-cloud/kb/cc-cleaner-tool-installation-problems.html
  4. Restart the machine.
  5. Install the Creative Cloud Desktop app from:
    https://creative.adobe.com/products/download/creative-cloud