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I have a Lenovo Y700 and I installed Ubuntu 16.04 yesterday. I downloaded the iso and installed it in my USB drive using YUMI. I had a problem trying to boot from the USB since it wasn't recognized. I had to go to BIOS and set it to boot from Legacy. Then it already appeared on my boot options. I installed it, restarted the computer and then GRUB appeared. Everything fine, until I tried to boot Windows. There are two options to boot Windows: Windows 10 and Windows Recovery. None of them worked, it shows a black screen saying I need to recover my Windows. Ubuntu boots fine. However, if I switch boot in the BIOS to UEFI, Windows loads just fine (although GRUB isn't displayed).

I have two questions: Should GRUB be booted with Legacy mode? (I think so but I'm not sure about that) What can I do to fix my Windows Boot from GRUB?

Thank you in advance!

Caramelo
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1 Answers1

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Try using boot-repair, it can repair many problems with grub with one click

https://help.ubuntu.com/community/Boot-Repair

Michal Polovka
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  • I have tried that solution but when I run boot-repair it says that my session is in legacy mode. My USB only boots when I set BIOS to UEFI... Maybe there is something wrong with my USB? – Caramelo May 16 '16 at 12:26