The M500s uses the Logitech Options Software. It is on the site, you may have just missed it for some reason. When you go to Logitech.com/options, click on Support, then Downloads. Now click on downloads in the top menu (I know this seems screwy) but when you hit downloads on this page you will then click on Logitech Options again, then click to download it. It is easy to make miss this. This link will take you directly to the page to download the Logitech Options for Windows 10: https://support.logi.com/hc/en-us/articles/360025297893