HP ProBook 450 G2 - Core i3 5010U / 2.1 GHz - Windows 7 Professional 64-bit Edition / Windows 10 Pro 64-bit Edition downgrade - préinstallé : Windows 7 - 4 Go RAM - 500 Go HDD - DVD SuperMulti - 15.6 1366 x 768 ( HD ) - Intel HD Graphics 5500 - 802.11ac