Hello there!
Sorry to jump in... But I have the same problem. I have a Lenovo P70 and it doesn't have a sub-menu (the menu button) only the home screen.
I have tried to uninstall/delete the duplicate Icon, but it removes the app for good. I have reinstalled it(for instance Facebook app) and after about two days, the duplicate appeared again.
The duplicates don't appear next to the original app...the appear randomly on the next empty slot on home screens.
Do you have any idea what is happening? Please advise.
Thank you in advance.
Viorel
02-11-2016 09:12 AM