so i did some research .. what is the better option for UEFI boot with DOK (USB) found so far. - you can create NTFS partition for data, and another fat32 for PE RESCUE disk - you can use your DOK only as RESCUE disk, with fat32 partition only - you can use your DOK as RESCUE disk, with NTFS partition, and another fat* partition (with NTFS DRIVER) option 1 & 3 are best so far. * fat (not fat32)