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Windows 7: Dual boot issue with Windows 7 Ultimate & Ubuntu 14.04

01 Nov 2014   #1

Windows 7 Ultimate x64
Dual boot issue with Windows 7 Ultimate & Ubuntu 14.04

Hi there folks,

Please bear with me, this is a bit long..

I want to have system with 2 OSes as named in the subject line. This is what I did to go about having that,

Its a new HDD (500 GB) partitioned as follows, 100 GB (for Windows 7), then 265 GB (Data) and then 100 GB again (For Ubuntu 14.04). I installed Windows and then installed Ubuntu on the respective partitions as mentioned.

Upon booting the system the grub screen appeared and could load Ubuntu but the Windows wouldn't. The windows loader threw the error as follows,

Status: 0xc000000f
Info: The boot selection failed because the required device is inaccessible

and also advised a startup repair.

I tried to do that using a bootable USB (DVD drive does not work) in vain. Choosing the Startup Repair option here took me to a screen where "Windows 7" OS is listed with "0 MB" Partition Size and "(Unknown) Local Disk" Location. Followed by a message, (I'm para phrasing here) the startup repair cannot fix the problem, send the error to Microsoft.

Then I read on the interwebs somewhere, to use the command line entity and run the 2 commands,
bootrec.exe /fixboot
bootrec.exe /fixmbr

Both of which were successful and upon booting it went back to the Windows loader now, with the same error and Ubuntu is not accessible at all.

So I have reinstalled the Windows on the same partition (the "head" 100 GB). My windows loader shows 2 instances of Windows 7 during boot up, one of which throws the same error and the other boots. The "tail" end 100 GB meant for Ubuntu, is hidden but listed as a healthy one on the Disk Management.

I would like to get rid of the faulty Windows 7 entry on the loader and get Ubuntu up and running smoothly. Please let me know if you need any more info.

Thanks in advance.

My System SpecsSystem Spec
01 Nov 2014   #2
Anshad Edavana

Windows 7 Ultimate x64

I would like to get rid of the faulty Windows 7 entry on the loader and get Ubuntu up and running smoothly. Please let me know if you need any more info.


Please download "EasyBCD" from and use it to delete the non working entry from the BCD boot menu.
My System SpecsSystem Spec
01 Nov 2014   #3
Microsoft MVP


The best method to Dual Boot - Windows 7 and Linux - Windows 7 Forums

The best way to add existing Dual boot Ubuntu-Win7
My System SpecsSystem Spec


 Dual boot issue with Windows 7 Ultimate & Ubuntu 14.04

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