See if this helps with your scrolling problem.
Right or left click your pointing device, bottom right hand side task bar / notification area - Device Settings tab - Settings - Select Vitual Scrolling & double click it. Have a play with it until you find a setting that you are happy with.
You probably should check Sensitivity too.
The keyboard problem is a little dicey though.
Try this fix and let me know if it helps any!
Just hold the "fn" key and the "numlock" key at the same time.
I hope these solution are able to help you out. Keep me posted on how it goes!
Windows Outreach Team