Yes, even Windows 7 includes some graphics drivers or a generic graphics driver. I was warned this computer wasn't compatible with W7, but W7 actually works fine, so perhaps the same will be true for W10, too.
My download's just conked out for no apparent reason. Will try again tonight/tomorrow. I can restore my W7 image backup if W10 fooks up my babbage-engine. I'll also roll back if my favourite touchpad driver doesn't work. Generic ones don't provide the same scrolling performance. May then try W10 on a desktop PC instead.