Check with ASUS for a newer touchpad app and driver. Some may be waiting for this driver. I'll stop here because it's here in the CNET forums in a few long threads and leave it to the shortest answer I can give.
Note: Title edited for typo.
After updating my Asus laptop to Windows 10, I can't scroll with two fingers anymore on the touchpad. I don't see any options in the mouse and touchpad settings to fix this. Any ideas on how to fix this?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic