Fix Windows Boot Configuration Data file is missing Error

The Windows Boot Configuration Data file is missing required informationWhen you start Windows Vista, you receive the following error message:
File: \Boot\BCD
Status: 0xc0000034
Info: The Windows Boot Configuration Data file is missing required information

This error occurs when either of the following conditions is true:

1. The Windows Boot Manager (Bootmgr) entry is not present in the Boot Configuration Data (BCD)     store.
2. The Boot\BCD file on the active partition is damaged or missing.

Resolution

To resolve this problem, use the following methods in the order in which they are presented.

Method 1:

Repair the BCD store by using the Startup Repair option
You can use the Startup Repair option in the Windows Recovery Environment to repair the BCD store.

To do this, follow these steps:

1. Put the Windows Vista installation disc in the disc drive, and then start the computer.
2. Press a key when you are prompted.
3. Select a language, a time, a currency, and a keyboard or another input method, and        then click Next.
4. Click Repair your computer.
5. Click the operating system that you want to repair, and then click Next.
6. In the System Recovery Options dialog box, click Startup Repair.
7. Restart the computer.

Method 2:

Rebuild the BCD store by using the Bootrec.exe tool

If the previous method does not resolve the problem, you can rebuild the BCD store by using the Bootrec.exe tool in the Windows Recovery Environment.

To do this, follow these steps:

1. Put the Windows Vista installation disc in the disc drive, and then start the computer.
2. Press a key when you are prompted.
3. Select a language, a time, a currency, and a keyboard or another input method, and then click Next.
4. Click Repair your computer.
5. Click the operating system that you want to repair, and then click Next.
6. In the System Recovery Options dialog box, click Command Prompt.
7. Type Bootrec /RebuildBcd, and then press ENTER.• If the Bootrec.exe tool runs successfully, it presents you with an installation path of a Windows directory. To add the entry to the BCD store, type Yes. A confirmation message appears that indicates the entry was added successfully.
• If the Bootrec.exe tool cannot locate any missing Windows installations, you must remove the BCD store, and then you must re-create it. To do this, type the following commands in the order in which they are presented. Press ENTER after each command.

Bcdedit /export C:\BCD_Backup
ren c:\boot\bcd bcd.old
Bootrec /rebuildbcd

8. Restart the computer.

If the given methods not solve your problems you Rebuild the BCD store manually by using the Bcdedit.exe tool

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