James Bannan19 December 2007, 4:00 PM
UPDATED | Got a Vista PC and want to install XP so you can dual-boot between them? Here's how to do it, in an easy, step-by-step format.
Page 6 - Fixing the Corrupt Bootloader
If the Windows XP bootloader corrupts during the install, performing a reinstall won’t fix it, nor will going into the XP Recovery Mode and attempting to repair the MBR.
Luckily, the install was up to the stage where all you need to do is be able to boot from the Windows XP partition, and the install will pick up from where it left off.
To do this you will need to restore the Vista bootloader so that you can then boot into Vista, install EasyBCD and create a boot entry for Windows XP. Once this has been done you can boot into the XP partition and the installation will continue.
Boot from the Vista DVD and on the screen where you’re prompted to “Install now”, select “Repair your computer”.
The next screen searches for local Vista installations – there should only be one, so click Next.
This loads the System Recovery Options screen. Select the first option – Startup Repair. This looks for problems which would prevent Vista from loading (like a missing bootloader) and automatically fixes them.
If you click on “Click here for diagnostic and repair details” and scroll to the bottom of the list, it shows that the problem detected and repaired was a corrupt boot sector (according to Vista, anyway).
Click Close and then Finish, and the system will restart and boot into Vista. Now you need to download and install EasyBCD, and follow the steps on Page 4 to add a boot entry for Windows XP.