Install all of your Windows device drivers (keyboard, trackpad, touchscreen) from Coolstar's webpage

https://coolstar.org/chromebook/windows-...

Note that drivers may be buggy. You might have to reinstall ChromeOS by using recovery in order to flash/re-flash the BIOS.

This is risky business, so only flash it if your drivers don't work out of the box and you have the technical know-how to fix it.