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UEFI Boot Failure

EDSman11
By EDSman11
in Troubleshooting
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So I'm stumped... I've got a lenovo yoga laptop (Model: 710-15IKB) that has a 250 gb Samsung sata ssd as the only drive. Recently, I began getting the famous "Default Boot Device Missing or Boot Failed" popup when booting up the machine. However, I was able to boot from the SSD in another machine just fine ruling out drive failure as the cause of the popup. I also was unable to get the computer to boot to a USB flash drive with the windows 10 installer loaded on it. Switching from UEFI to Legacy in the laptop's BIOS allowed me to boot to the flash drive and install a fresh install of windows to the SSD (albeit in MBR format). However, booting windows in legacy mode seems to prevent the sleep function on the laptop from working properly.

 

I've been at this for hours and cannot figure out why the laptop will not boot to any device in UEFI mode. The boot devices will show up in the boot device list but it fails to boot every time unless its in legacy boot mode.

 

Any help is greatly appreciated...

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