read the cleaner suite guidelines that came with your cleaner,
• Choose your language by typing e for English or j for Japanese.
• Review the Adobe End-User License Agreement and type “y” to Accept or “n” to Decline. Declining exits the script.
• Choose the version of Creative Suite or Creative Cloud / Flash Player for which you wish to run the cleanup.
• Choose the product to remove by typing the number corresponding to the product name, and then press Enter.
• To confirm you wish to remove the product, type y and then press Enter; to return to the installed products list, type n and then press Enter.
• If you choose "Clean All" option, all the products and installer related files will be removed, corresponding to the version of the Creative Suite chosen.
• When the script completes, press Enter to exit.
sometimes - for whatever reasons - CC doesn't "want" to work. In this case you should CC completely delete and reinstall by help of Adobe Creative Cloud Cleaner Tool. (A try to uninstall by own resources is not enough!) http://helpx.adobe.com/creative-suite/kb/cs5-cleaner-tool-installation-problems.html and follow the prescribed sequence of operations. Sometimes the "opm.db file" is the culprit. In this case you should delete it.
So far, so good –I also often gave this advice. This approach only allows to look at the symptoms of this malfunction. Therefore I started a thread “What's up with "Downloading, Installing, Setting Up"?” I asked for a improvement of the product, so it is not necessary to use Cleaner Tool. Preran a member of Adobe’s staff promised "many improvements". Here is the link: https://forums.adobe.com/message/6408998
In order to accelerate the process I therefore call upon you to support my efforts. Most successful could be to click a „like“ in Prerans answer (see consecutive number 11)