How to Repair the BOOTMGR Dual Boot System for XP & Vista
- 1). Insert the Vista installation DVD into the drive. Reboot the computer with the disk in the drive. The computer detects the Vista DVD. Press any key on the keyboard to continue into the recovery console.
- 2). Click "Next" in the opening screen. Click the link labeled "Repair your computer" to open the recovery options. The next window displays a list of operating systems to repair. Select "Vista" from the list and click "Next."
- 3). Click the link labeled "Startup Repair." This copies the boot files from the installation disk to your hard drive. After it completes, remove the installation DVD and reboot the computer again.