Excuse me butting in, but there was a similar thread on this earlier in another section. I posted this as a possible solution, so it might be worth looking at.

Have a look at this MS website & see if there is anything there to help you. There are some links you can follow & there is a "fixit" there as well in one of those links.
Injudicious & over use of registry cleaners is one of the causes.

My Control Panel Doesn't Show All Of My Installed Progams - Microsoft Community