grub2 - Unable to boot into Windows after installing Ubuntu, how to fix? - Ask Ubuntu


i installed windows on computer, followed installation of ubuntu. however, i'm unable boot windows install.

what can fix this?

i going make assumptions:

  1. that windows installed , configured boot via uefi.
  2. ubuntu installed , configured boot via uefi.
  3. you're seeing grub menu @ boot.

if of assumptions false, following advice not (though won't hurt either):

create file, /boot/grub/custom.cfg (by running sudo -h gedit /boot/grub/custom.cfg) these contents:

#this entry should work version of windows installed uefi booting  menuentry "windows (uefi)" {  search --set=root --file /efi/microsoft/boot/bootmgfw.efi  chainloader /efi/microsoft/boot/bootmgfw.efi }

(copy , paste above gedit window comes up, save , quit gedit)

reboot , should see entry titled "windows (uefi)" , if select windows should boot. if not work, please run boot info script (http://bootinfoscript.sourceforge.net/ ) , post results.txt produces have information needed give proper advice.


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