Thanks for your message! But just so you know, I support US products and customers. So if you want the most accurate information, please contact Samsung Support in your country.
Hope this helps you!
I have a Samsung UA40F6400 smart tv, and last might, it decided to delete all the apps, except for the top row, which includes the samsung app store.
The tv is less than a year old and its the first time its done this. It is operating in 'home' mode. Since this happened, I performed a firmware upgrade to try resolve this. Is this a common problem?