Keys not workin

Hello,

Im havin trouble with my tablet pc.

TABLET PC Lenovo Ideapad MiiX 300 10lbY 10"

Model: 80NR

Some keys are not working: G H Fn RightCtrl and the F11 key.

The bigest issue are letters G H and not so much but still Fn key.

I noticed this issue right after updating windows with an automatic update.