I got an open box laptop(Lenovo v17 g3 iap) from a dude on a local used electronics website. He stated that it is brand new and only getting windows in Greek(from German). I am guessing that it might have been an exhibition one because he gave me only the laptop and its charger. The thing is that windows says that it is not activated. Having downloaded 2 pieces of software that tell you windows activation keys. I have found 2 Windows keys but it doesn't work(still deactivated) . What to do?