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I have a windows 8.1 preview (upgraded from 8) on my system. I have one HDD or 1 TB, with one drive 228 GB for ubuntu.

I downloaded 13.04 (64 bit) from ubuntu's site. used pendrivelinux to create a bootable usb. restarted the computer, and booted from USB (from UEFI menu). selected try ubuntu without install installed ubuntu made 4 partitions:- boot, root, home and swap. all went well and the prompt came asking me to restart the system. Once i clicked the restart button, windows loaded without asking for any OS choice.

so i restarted the system again went into boot menu, which showed, ubuntu also. Selected it and pressed enter, again windows loaded.

So i googled a bit and installed easybcd, this is what it said.

There are a total of 3 entries listed in the bootloader.

Default: Windows 8.1 Preview
Timeout: 30 seconds
EasyBCD Boot Device: C:\

Entry #1
Name: Ubuntu
BCD ID: {63712191-130f-11e3-bef6-84a6c82584a5}
Device: \Device\HarddiskVolume1
Bootloader Path: \EFI\ubuntu\grubx64.efi

Entry #2
Name: EFI USB Device
BCD ID: {0bd5b854-4556-11e2-8925-d4bed9614efa}
Device: Unknown
Bootloader Path: 

Entry #3
Name: Windows 8.1 Preview
BCD ID: {current}
Drive: C:\
Bootloader Path: \WINDOWS\system32\winload.efi

I tried adding a new entry also as told on many sites, but all in vain.

I checked to see if ubuntu is actually installed or not. So when i tried to reinstall ubuntu, it said that it is already installed.

So what can I do now?

Based upon the suggestion, i installed boot repair. ran boot repair and selected recommended option in boot repair. system said that i need to turn off secure boot. and then completed saying that i can restart. On restart nothing changed with or without the secure boot disabled. That is no boot menu. straight away going to windows.

So i logged in again via USB installed boot repair again. ran boot repair in advanced mode, but wit default options checked. system asks me to run a few commands (3) followed by another command. then says to restart.

On restart this time the USB loads itself, as if there is no windows or ubuntu installed. I checked the boot menu and there is no windows or ubuntu.

Current boot info summary is: http://paste.ubuntu.com/6059160/

Currently I have secure boot off, i guess i t is required to be disabled for dual boot.

in advanced boot, the default option selected was sd6 for /boot partition and sd1 for boot/efi partition

My boot repair screen is different from your's.

Then I went ahead and reinstalled ubuntu (deleted the previous install) Ubuntu is working fine now.

Now i need to find a way to bring back windows to life. Please suggest how to do that.

1 Answer 1

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Boot from a live Ubuntu USB pendrive or CD and
Install Boot-Repair on ubuntu by following steps

Open the terminal and run the following commands

sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install boot-repair

After completing the installation you can launch it from System->Administration->Boot-Repair menu if you use Gnome, or search "boot-repair" in the dash if you use Unity. Then follow the following screenshots:

Method 1

  • Click on the advanced options

Initial screen

  • Tick the options shown below

advanced option

  • Change the tab to Grub Location Tab and Tick The options Shown in the figure

enter image description here

Press Apply and Reboot the system

Method 2

  • Select the recommended Boot repair options as shown in the first screenshot

Documentation :

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  • Hi, Thanks for the instruction. Let me tell you I am one day old with respect to ubuntu. the 3 lines for installing helped. As i know nothing so, i went ahead and chose the recommended option. It asked me to disable the boot secure boot option, i said yes. It then repaired the boot file. Took backup of the windows boot file. (I guess) paste.ubuntu.com/6056110 this is the paste link. I am going to restart the system now to see what happens (without disabling the secure boot). Please let me know what are the affects of disabling the secure boot. Thanks & Regards, Shivam Verma
    – user189491
    Sep 2, 2013 at 18:26
  • Hi, the restart did not work. with or without the secure boot disabled.
    – user189491
    Sep 2, 2013 at 18:39
  • And now i am not able to log into Windows as well. This is a new problem that I have created. Guess both have the same solution.
    – user189491
    Sep 2, 2013 at 18:40
  • Error that i am getting is: Failed to open \EFI\Microsoft\Boot\grub64.efi Failed to load grub failed to open \EFI\BOOT\grubx64.efi failed to load grub checking media [Fail]
    – user189491
    Sep 2, 2013 at 18:44
  • @user189491 Is this what you are getting? askubuntu.com/questions/262904/…
    – Stormvirux
    Sep 2, 2013 at 18:55

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