System Preparation Tool Must be Administrator

Hello,

I am attempting to run the System Preparation Tool with Windows 8.1 Enterprise x86 on an Asus T100TA. I have all of my drivers and software I want already installed on my image.
But I am unable to run the Sysprep through the UI or Command Prompt, even though I am in the Audit Mode's Administrator account. What options are there? I already had to reinstall twice after leaving the tablet on overnight and wasn't able to get back into the Administrator account. I get the "You must be an administrator to run this application" message.

Thanks,

Zach

zmb