Problem with Lenovo T410 keyboard?

Just bought a 2nd hand lenovo think pad T410 great machine, very fast… BUT the keyboard is really weird… The letters and numbers Maj and Min work normally but the punctuation and other stuff are all mixed up… Ex I hit the # key and it will come up? Bref impossible to type… I tried changing the keyboard language from French to English… Even worse. The keyboard is QWERTY and the OS is windows 8pro, please any solutions. Or did i buy a piece of junk

Added (1). Sorry the keyboard is AZERTY but I can't find from which country it come from

You should meet to good technician, they will provide you help. If required then you should purchase a new one.