I allways log in to my personal machine as standard user. Using Win7, usually there is no need to login as admin. I installed JavaFX as standard user (not a membert of admin group!) and provided a admin password. Now, JavaFX wont appear in the installed program list. If I call "runas /user:administrator cmd" and then "appwiz.cpl" I'll run this program again as admin with no different list.

Only if I log in as admin, I'll see JavaFX. Then de-installation is no problem.