I am currently using Win 8.1/64 but since I have a spare disk I thought I would install Win 10/64. I am running on an ASUS m/b with UEFI enabled. The disk I completely formatted as dynamic disk and setup some partitions. I installed W10 but it did not like the partition so allowed it to reformat it. I now find it is setup as a MBR disk. Out of interest I changed it back to dynamic but now W10 will not load. I thought that have a UEFI m/b would automatically install as such. Or maybe I am misunderstanding the process. Some advice here please. There is nothing important on the disk
You should reformat your disk as a GPT format (BASIC disk) not a DYNAMIC disk. Then Windows will create the necessary EFI (System) partition, RECOVERY partition and the MS System Reserved partition when it builds, if using UEFI.
Thanks Just got working again having corrupted everything. Currently I have Win 8 on MBR. Can this be converted to GPT and restoring from Macrium choosing the EFI option on the Macrium recovery stick?
Your question is a bit confusing. Currently you seem to have a MBR build on a W8 system. Although most of the time, this type of configuration is of the Legacy-MBR type (not UEFI), it can be used with UEFI so its not clear what you currently have to work with. Any MBR-formatted disk may be converted to GPT formatted disk (it's a format type, not a BOOTing type). I know of no EFI option available in the Reflect RECOVERY MEDIA that you reference. It sounds like you are asking if your current Legacy-MBR image may be converted to an UEFI configuration upon restoration using REFLECT... if so, the answer is no.
This is most likely me not knowing enough and making assumptions. When I boot from the BIOS menu I am offered two options on the USB stick. One is in UEFI and the other normal (I assume MBR). Both will boot to the PE recovery. I was guessing that you have use the appropriate one for the disk format.
Nope, those options are only offered because the Reflect RECOVERY MEDIA is built to be able to BOOT on either system configuration (like standard Windows Distributions since W7), and many UEFI BiOS allow for the BOOTing of either environment (like yours). Since the Recovery Media has both available, your system offers you either to use... both will work just fine. Once the recovery environment is loaded, Reflect is on its own to do whatever it wishes as far as imaging and restoration is concerned.