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How to fix corrupted Windows registry from Ubuntu partition

By on February 22nd, 2010 
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The registry is one of the most important part of the Windows Operating System. Any problem with the registry can have far reaching consequences. A corrupted registry can prevent Windows from even starting up.

In this article, we will show you how you can fix a corrupted Windows registry from an Ubuntu partition.

So, if there is some problem with your Windows registry and you cannot start Windows, here is what you can do:

  • Boot into Ubuntu.
  • Once in Ubuntu, open the terminal.
  • Install NTFS-3G, with the command
sudo apt-get install ntfs-3g
  • Install NTFSProgs
sudo apt-get install ntfsprogs
  • Mount the NTFS partition:
sudo mkdir /media/windows
sudo ntfs-3g -o force,rw /dev/<device name> /media/windows
  • Now we are all set to start fiddling with the registry. But before you do that, it would be advisable to back it up with the command:
sudo cp -r /media/windows/WINDOWS/system32/config/ /home/<user>/Desktop/
  • Now copy the following files from the fileĀ /media/windows/System Volume Information/_restore{xxx}/RPxxx/snapeshot/ directory:

    _REGISTRY_USER_.DEFAULT
    _REGISTRY_MACHINE_SECURITY
    _REGISTRY_MACHINE_SOFTWARE
    _REGISTRY_MACHINE_SYSTEM
    _REGISTRY_MACHINE_SAM

    to theĀ /media/windows/WINDOWS/system32/config/ dir and name them as follows:

    _REGISTRY_USER_.DEFAULT => default
    _REGISTRY_MACHINE_SECURITY => security
    _REGISTRY_MACHINE_SOFTWARE => software
    _REGISTRY_MACHINE_SYSTEM => system
    _REGISTRY_MACHINE_SAM => sam

  • Schedule a consistency check with the command:
sudo ntfsfix /dev/<device name>/
  • Reboot into Windows. You will get a screen telling you that you should run a filesystem consistency check. Let the check run and then the second reboot should bring you back into a bootable Windows.

[via Ubuntu Forum]

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How to fix corrupted Windows registry from Ubuntu partition was originally published on Digitizor.com on February 22, 2010 - 11:16 am (Indian Standard Time)