How to Repair Windows Vista Bootloader

Last week, I ran into trouble while trying to install Windows XP (as a dual boot) to my PC that already has Windows Vista. If you have never done it but are thinking of doing, then BE VERY CAREFUL!!! There are many things you need to be aware with dualbooting with Vista. After copying files from the CD during installation process, it restarted automatically to boot from XP. But it can't boot any more!!! Neither from Vista nor from XP. It says something like operating system is missing.

After googling for a while, I found out that Vista uses a totally different boot process from XP. Therefore, it must have been messed up by XP installation. I couldn't load boot menu to try safe mode or last known configuration either. Because it's OEM version, I didn't get any install DVD or recovery disc.

Finally I found and downloaded Windows Vista Recovery Disc thanks to NeoSmart. You can download the torrents from the following links. You need to have a torrent software to download them. You only need one depending on the version you have.

Windows Vista 32-Bit (x86) Recovery Disc Torrent

Windows Vista 64-Bit (x64) Recovery Disc Torrent.

After downloading the ISO file, you need to burn it to a CD and boot from the CD (press F12 during power up). I have taken some screenshots for step by step procedure. You can use Vista installation DVD too if you have one.

Boot from the CD and after a few seconds later you will see the following screen to choose language and time format.
Click Next and you will see the screen below. DO NOT click on "Install Now" button. Click on the "Repair You Computer" link.
Then you'll see "System Recovery Options" box listing your Vista. Choose "Next".
You'll be presented with a list of options you can choose to repair or restore. To repair bootloader, choose "Startup Repair". It will automatically repair the bootloader and at the end there will be a message box showing how many problems found and fixed.