Recently, my (x86) program files have not shown up in my start menu. It is my understanding that the x86 files are the 64 bit files. Most of the games that I install end up defaulting to the x86 directory and when they finish installing they do not show up in my start menu. They don't even show up when I type their name in the search bar at the bottom of the start menu.
I can manually search them by going through my C: drive, but it becomes a pain to have to do this every time I try to run a program. I have tried showing hidden files and folders but it still does not work.
Have you somehow locked your Start menu? Any program installed shows up in the menu in one form or another... I can only see 2 things that may cause problems... malware or misconfiguration of the menu.