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Accepted
Mark Thomas
Asked: 2012-05-02 00:34:00 +0800 CST

Lost Windows 7 when loading Ubuntu

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I have installed Ubuntu as a dual boot with Windows 7 following the step on the installation. Ubuntu works fine, and Windows 7 appears as an option on the boot menu, but when selected, hangs. I was concerned to see files from my windows installation appearing in a Device called OS in the file manager. Have I lost everything? or is there some way back?

windows dual-boot

1 Answers

  1. Best Answer

    You just have messed up the MBR of windows. Just try to put a window DVD or USB(window setup on it) and start a system repair and fix the MBR of windows by the command at system repair:

    c:\>bootrec /fixmbr

    this command also worked for me to get back windows:

    c:\>bootrec /fixboot

    After that, you have to reinstall the grub loader. Just try a live CD of ubuntu and open terminal and write:

    mount /dev/your_boot_partiton /boot
grub-install --root-directory /boot /dev/hda

    Now You can dual boot both operating system properly. For me it worked well.
    EDIT: You can view your windows partitions on linux as fdisk-l and listing out the ntfs partitions.
    On windows, similar can be achieved by 

    x:\>diskpart.exe
diskpart>select disk 0
diskpart>list volume

    and from there you can come up to know the partition of the window

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