Did you try the recycle bin? If it is in the recycle bin, you can always restore it. If it was deleted from the recycle bin then you could create a new shortcut to the program. The "program files (x86)" folder is most likely where it is installed. Find the program's install folder and look for an application file type or an .exe file. Right click and select "send to" -> "desktop (create shortcut)" and it should make a new desktop icon for that program. Or, alternatively, you could perform a system wide search for the program's executable file then create the shortcut from there.