Driver 442.19 for GeForce 840M and Windows 10 64bit
You have just chosen a driver to download. This is version 442.19 of 2020-01-30 for the nVidia GeForce 840M graphics card and Windows 10 64bit. In addition to the nVidia GeForce 840M, it supports a further 180 graphics cards, see the "A list of" tab. Make sure it is the right type, and then click the Download driver icon.