How about directly installing Photoshop from here until senior support executive looks into this issue : Download New Adobe CC Trials: Direct Links (no Assistant/Manager) | ProDesignTools
Let me know if it works for you.
didn't work. the Adobe applications installer hangs and says not responding when I tried to install it.
Hmm I guess you might have tried removing Adobe folders from both User and System libraries and all Adobe related folders from Applications and Utilities .
As you are getting Application Manager not responding issue now , let me know whether you had tried with Safemode once ??
i had deleted the adobe related folder and safe mode. nothing works. I ended up just backing up my files and reinstalling a fresh version of OS X. It's working now...
Glad to hear that the issue has been resolved ,
Have a nice weekend .