I installed PP6 on my Lenovo Laptap with Win8.1. Worked fine. Turned off computer. Turned back on. Can not open ANY PP6 program. No Adobe app shows as a listed program to uninstall. However, Adobe PP6 files shows in directory search. How do I fix?

How do you uninstall PP6 with win8.1 when it no longer shows up as a program listed with an uninstall options.  PP  worked until I turned off computer and restarted.  All start up links are gone.   I can see where Adobe PP6 files installed when I do a directory search but no .exe start files in those directories work.  I can not uninstall PP6 and try again to re-install.    How do I fix this problem?