Laptop will only boot with Bios in legacy mode

  Kaywayk 06:40 22 Jun 2017
Locked

Hey guys! My laptop was giving me a "No Bootable Device" message when I turned it on. I switched the Bios boot mode from UEFI to Legacy and it worked fine and booted. My question is, what happened to my laptop? And how do I fix it so I can go back to using UEFI? Is there any drawbacks to using Legacy?

Thank you

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