You can utilize the recovery tools on your installation media, such as a DVD or USB, to rebuild your Windows installation if the BCD is missing. Then, take the following steps:
- Restart your computer after inserting the Windows bootable installation DVD.
- When requested to select a key to boot from a CD or DVD, select any key to proceed.
- In the Windows Setup interface, select your language settings and then click Next.
- In the bottom-left corner, select Repair your machine.
- Select Troubleshoot from the Choose an option menu.
- Select Automatic Repair from the Advanced Settings screen.) Wait for Windows to finish its automatic repair.
