WIN10 - Keyboard layout & Close/Min/Max button issue

Dear Community,

On few computers (all Lenovo branded, Laptop & Desktop) I've 2 stranges behaviour:

1) The Keyboard layout isn't recognized from MY computer to the new (remote) computer.

My computer is mapped as "French" keyboard;

Remote computer is mapped as "Swiss German" Keyboard

When I type something, it's seems to be mapped with UK Keyboard for no reason.

2) Some windows (seems to be classic windows, compare to the new Metro/Win10 theme) can't be close/maximize/minimize using the top bar button.

They just don't work at all and this, as soon as I installed teamviewer host 13 on the machines.

All common points : Lenovo Machine under Win10 (Pro)