Do you also have problems with Edge not working if so it is indeed the the copy profile in sysprep causing the issue. It's a known bug that began when the November TH2 update was released. Check this post:
https://social.technet.microsoft.com/Forums/en-US/39659172-1917-4796-9c2e-9b1adfeced86/win-10-unattendxml-copyprofile-true-breaks-search-bar?forum=win10itprosetup
Still no fix that I'm aware of...