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This question already has an answer here:

I installed Ubuntu on Samsung laptop with Windows 8, everything went fine but on booting with Ubuntu I get the following message:

\ubuntu\winboot\wubildr.mbr
status 0xc000007b
The application or operating system cold not be loaded because a required file is missing or contains errors.

Any solutions? I also cannot boot from USB.

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You are likely dealing with UEFI and SecureBoot. See: askubuntu.com/questions/206950/12-10-uefi-secure-boot-install – david6 Nov 3 '12 at 9:41
Are you using 12.04 LTS or 12.10 Ubuntu? – david6 Nov 3 '12 at 9:42
Using 12.04 LTS – Bob Nov 3 '12 at 11:40
Please indicate your Boot-Info URL ( help.ubuntu.com/community/Boot-Info ). – LovinBuntu Nov 7 '12 at 10:43

marked as duplicate by Mitch, Basharat Sial, maggotbrain, Eric Carvalho, green7 Apr 17 at 12:26

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

5 Answers

up vote 3 down vote

Disable UEFI in your bios, and you should be good. You can usually do this by choosing "Legacy Boot Mode" under the UEFI option.

UEFI is a cancer on digital freedoms, whether or not people want to admit it.

Source: I just bought a Thinkpad Edge E535 and went through this about 5 hours ago.

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up vote 1 down vote

The filename \ubuntu\winboot\wubildr.mbr suggests you're using WUBI, which is a way to install Ubuntu onto a file stored in a Windows filesystem rather than on a separate partition. WUBI is good for trying out Ubuntu, but it's a bit weird and inflexible compared to a more conventional installation. Of importance to you, I don't know offhand if WUBI is compatible with EFI, which you're almost certainly using if the computer shipped with Windows 8. (If you've installed Windows 8 yourself on an older computer, though, all bets are off with respect to BIOS vs. EFI booting.)

Looking at your partition table should answer some of the questions and enable you to move forward down the correct path (WUBI vs. a standard installation; EFI vs. BIOS). I recommend you boot to a Linux emergency disc and run the following text-mode command:

sudo parted /dev/sda unit s print

If you've got multiple hard disks, repeat that for each one (/dev/sda, /dev/sdb, etc.). Post the results here, or post a link to a Web page with the results.

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up vote 1 down vote

Secure Boot is currently not supported on 12.04. It is supported on 12.10. This solution will be backported to LTS on 12.04.2. Just to prove that it is the case, you can try booting 12.10 from an USB.

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up vote 1 down vote

The bug report on launchpad is here: https://bugs.launchpad.net/wubi/+bug/694242

Please vote for it.

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up vote 0 down vote

its simple install wubi with ubuntu 10.04.4 and then upgrade it and you can dual boot with the uefi disabled ,for unknown reasons uefi doesnot do anything with wubi along with 10.04.4,this gives me the suspicion that probably ubuntu has removed some files from 12.04 compared to 10.04 that prevents dual boot,i have tried it and mine works super smooth .I have no uefi i have bios

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