@netw0rkm0nkey As per release notes of SED 10.3.1 http://www.symantec.com/docs/DOC6697 Windows 8 UEFI
- Tablets and any systems without a wired or OEM-supplied attachable keyboard are not supported
■ Authenticating at PGP BootGuard on Dell XT Tablets: To authenticate at the PGP BootGuard screen when using Dell XT tablets, use the built-in keyboard on the tablet. You cannot use a pen, stylus, USB keyboards, or eTokens when authenticating on these tablets. [2636340]