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So I have had Windows 8.1 and Ubuntu running side-by-side for the last couple of months, and both on separate hard drives. Today I turned on my computer and the option to boot into Windows was gone, but I can see the the Windows 8 hard drive, and all the data on it.

So my question is, how to I fix Grub to allow me to boot back into both Ubuntu and Windows?

By the way sorry if this is a duplicate, I searched and couldn't find anything, so if it is, just point me to the link and I will close the question.

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  • have you tried "sudo update-grub" from a livecd yet?
    – sbergeron
    Jul 13, 2014 at 15:31
  • Nope, do I have to use a live cd, or can I do it from Ubuntu (which I am booted into now)?
    – TheXed
    Jul 13, 2014 at 15:32
  • you can try from your current boot, but I've just had a higher success rate when the root volume is not on the same disk
    – sbergeron
    Jul 13, 2014 at 15:33
  • I'll give it a shot and let you know.
    – TheXed
    Jul 13, 2014 at 15:33
  • Ok I'll put that in the answer box if it works for you
    – sbergeron
    Jul 13, 2014 at 15:34

1 Answer 1

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run "sudo update-grub" from a livecd, or from your installation if you have a livecd just in case

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