Im using Win7(Ultimate) and today while working in my computer, i saw some uninstalled programs not erased in the folder C:\ProgramData. I just Ctrl+del all files in that folder without any thought, but some files were not deleted. Later i saw that the programs that were displayed in the start menu were deleted and only some were listed. I tried to backup by creating a restore point, but unfortunately i dint save any restore points in the past. Then i reinstalled some files like Skype, winamp, Adobe and those files pinned there as newly installed files. But the files like Accessories, Games everything was blank. But all files were working properly. I still donno what to do to get back to the previous state like the programs to be listed propely as before. Please to reply for my query as soon as possible.