OK I have been fighting this issue for a few weeks now. I purchased an SS 850 EVO 500Gb SSD. I have disabled secure boot in the UEFI bios. I am running Win10 Pro, I have reduced the C: to less than 500Gb. I have done an image backup to an external (USB) hard disk. I have created a restore USB thumb drive. When I clone my HD to the SSD using SS Data Migration and I put the SSD in the laptop, I get the issue no boot device found. If I use f12 I can see, select and boot of the SSD, although the OS still says it is a WD hard drive. I am not new to PC builds although I am new to UEFI. I tried Acronis and it said it can not clone it. Dell and Samsung say credit card please or talk to the other guy. Any ideas or solutions will be appreciated.