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So... I wanted to mount a virtual environment of Windows 7 on VirtualBox. I found out I had to turn on "Virtualization" on the BIOS. So, I went to the BIOS and enabled Virtualization. Then reboot the computer, it showed some HP repair messages which I accepted, and now It goes directly to Windows 8. Can't find the way to boot into linux.

Tim
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alejoss
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  • Did you try EasyBCD ? Try this tutorial. – Ron May 01 '15 at 16:37
  • Thanks for the reference, but it doesn't work. I get a black screen with white letters saying "Windows failed to start...." :/ – alejoss May 01 '15 at 17:00
  • Can you disable virtualization in BIOS and try? – Ron May 01 '15 at 17:03
  • Tried that, didn't help. Maybe I need to fix GRUB? – alejoss May 01 '15 at 17:12
  • If you have a windows repair disc, use that to repair windows. Then use EasyBCD to add grub entry for ubuntu. – Ron May 01 '15 at 17:21
  • Windows works correctly. I just installed EasyBCD and followed the tutorial you suggested but it didn't work. ... how do I add a grub entry for ubuntu? – alejoss May 01 '15 at 17:30
  • You mean you still can not get an option to boot ubuntu and it directly goes to Windows 8? – Ron May 01 '15 at 17:35
  • Also, does your laptop come with win8 pre-installed in UEFI-mode? If yes and you installed Ubuntu in BIOS mode, there could be problem (and EasyBCD will not be useful). – Ron May 01 '15 at 17:44
  • Thanks Ron, yes, it used to go directly to Windows 8. I solved it using boot-repair on a live usb. – alejoss May 03 '15 at 20:32

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The only thing that worked for me was installing boot-repair on a USB and booting from it. I found out that whenever I make a change in the BIOS and "Exit and save changes", I'd lose access to Ubuntu, looks like Windows "fixes" the boot and then I can't access GRUB.

Tim
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alejoss
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