Haven't done it myself, but from what I remember of discussions MS didn't make this capable of PXE boot so you need to look at using USB or DVD boot media to get into provisioning.
MarXtar Ltd/MarXtar Corporation
LANDesk Expert Solution Provider
The One-Stop Shop for LANDesk Enhancements
Update - New Stand-Alone State Notifier Console for Service Desk Operators
Update - State Notifier now detects machine and user Idle states
Update - WoW & State Notifier now integrate for even more functionality
Making some progress on this issue. I've created a UEFI compatible Windows 8.1 image using ImageW2 64bit. Struggling still with driver issues and HII not completing as part of a Provisioning Script. Have an open ticket with support. Another anomoly I've found is with Remote control viewer. I can remote these tablet devices but I cannot scroll the screen or control the mouse. I suspect that its a driver issue with tablet touch screens as I see the same behavior on Surface Pro 2 tablets and the Dell Venu 11.