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New 12.10 Install, Windows Not in Boot Menu

rated 0 times [ 0] [ 0] / answers: 1 / hits: 3285 / 2 Years ago, thu, december 9, 2021, 10:22:36

I just installed Ubuntu 12.10 on my new computer alongside my previous Windows 7 installation. Upon booting for the first time (post install) my boot menu only lists Ubuntu.

I installed using a liveCD, I had to set up my partitions myself because my Windows wasn't being detected (I set up the new partition out of free space on the drive.). I know Ubuntu did not overwrite my Windows because I can mount the Windows drive and access the files from here.

I also tried running boot-repair, as was recommended for people who didn't have Ubuntu showing up in the menu, but now I just have two different Ubuntu options. Still no Windows.

(If you require any additional data [logs, etc.], could you tell me how to find it, I am a bit new to this.

Any help is greatly appreciated.

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answered 2 Years ago iriousutur · Accepted Answer

I asked about this on the Ubuntu forums as well and got some really good feedback from the maker of the Boot-Repair utility. I'm pasting their instructions here which worked perfectly for me in case someone else has the same problem.

This case is rare. You have no original
/EFI/Microsoft/Boot/bootmgfw.efi . (presence of
/EFI/Microsoft/Boot/bootmgfw.efi.grb indicates that B-R created a
dummy /EFI/Microsoft/Boot/bootmgfw.efi ). I will update B-R for this
case. Meanwhile, you can do this:

Please : 1) boot an Ubuntu CD, choose "Try Ubuntu" 2) open a terminal
and type the following commands one by one:

sudo mount /dev/sda1 /mnt

Press Enter

sudo rm /mnt/EFI/Microsoft/Boot/bootmgfw.efi*

Press Enter

sudo cp /mnt/EFI/Boot/bootx64.efi.bkp /mnt/EFI/Microsoft/Boot/bootmgfw.efi

Press Enter

3) run Boot-Repair --> Recommended Repair , indicate us the new URL
that will appear
4) then reboot the pc without CD, and tell us what
you observe