Hi guys. I have a Z13. I wondered if any progress had been made towards enabling EFI boot capability. I have gone through this entire thread meticulously. My problem is as follows: 1. My original machines was a 256gbGB SSD (two port SATA OEM from Sony). The SSD Bay takes two ports on the Raid controller. Have since added a DVD bay adaptor and dropped a 1tb ssd into it. That takes another port. 2. Next step is to flash the hacked BIOS, applied the video switch changes and hacked drivers - on a journey to Win10 eventually. An unexpected problem occurred. The SSD drive in the DVD bay (which is a clone of the original SSD) wont boot. It is recognisable as a drive and behaves well. I presume this is the result of a BIOS limitation which prevents the DVD port from booting an SSD. Hence the question. I see that this BIOS in default mode only support a BIOS based boot. Did anybody manage to re-enable UEFI?