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I have 2 hardisks: one of 40GB with 2 installations of Windows XP (one in FAT and another NTFS), and another hardisk of 200GB with a BackTrack installation, Ubuntu installation and a NTFS partition.

After installing Ubuntu and Backtrack I don't have the boot entries to get into Windows XP anymore. In GRUB I can see only BackTrack and Ubuntu. How can I add in Windows XP entries and have the option to select from any of my four OSes after booting?

Any suggestions would be really helpful.

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You can use Boot-repair to recover access to Windows install. To install:

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

You could then launch it using either :

  • the dash (Unity)
  • System->Administration->Boot-Repair menu (Gnome)
  • by typing 'boot-repair' in a terminal

Try "Recommended repair" button. When repair is finished, reboot and check if you recovered access to your OSs.

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Thanks for the reply but I couldn't get the Windows partitions available. Have a look at [link][/link] which I got during repair. – Vinay Nov 26 '11 at 18:06

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