Same pb here.
I have my Surface from 3 hours.
CPU is blocked to 0.19Ghz
After XPS 15 9500 issue, and this I think it's enough for me.
I will finish with MacBook Pro.
I don't understand with this price how is it possible to have issue like that.
Surface book cannot be use with a cpu at 0.19Ghz
Bye Surface Book 3