Fix “Windows boot configuration data file is missing” Error

As we all know that Microsoft's Windows based Operating Systems
are one of the commonly used operating system all over the world but these operating systems is exposed to several threats.

Some of the common issue associated with Windows based computers are
1 Malfunction of operating system due to the Virus or other malwares.
2 Due to the corruption of the registry or some other files.

If all these get issue get more severe it lead to no boot issue , one of the common issue with Windows based operating system is “Windows boot configuration data file is missing”

Symptoms of this error
When we start our operating, we receive the following error message.
File: BootBCD
Status: 0xc0000034

Causes for this Error
This error is caused due to the following reasons.
1 The Windows Boot Manager (Bootmgr) entry is not present in the Boot configuration data (BCD) store.
2 The BootBCD file on the active partition is damaged or missing.

How to solve this Error.

Method 1:
1 Repair the BCD store by using the Startup Computer 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 support installation disc in the disc drive, and then starts 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.
Click the operating system that you want to repair, and then click next.
5 In the System Recovery Options dialog box, click Startup Repair.
6 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 starts 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:bootbcd bcd.old
Bootrec /rebuildbcd
8 Restart the computer.

If we are not able to solve this error by both the above methods then try method 3

Method 3:
Rebuild the BCD store manually by using the Bcdedit.exe tool
If the previous method does not resolve the problem, you can rebuild the BCD store manually by using the Bcdedit.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 starts 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 the following command, and then press ENTER:

cd /d Partition:WindowsSystem32

8 Type the following command, and then press ENTER:
bcdedit /enum all
9 In the Windows Boot Loader section of the output from this command, note the GUID that is listed for resumeobject. You will use this GUID later.
10 Type the following command, and then press ENTER:
bcdedit -create {bootmgr} -d "Description"
11 Type the following command, and then press ENTER:
bcdedit -set {bootmgr} device partition=Partition:

12 Type the following command, and then press ENTER:
bcdedit /displayorder {GUID}

13 Type the following command, and then press ENTER:
bcdedit /default {GUID}

14 Type the following command, and then press ENTER:
bcdedit /timeout Value

15 Restart the computer.

Source:
http://www.articlesbase.com/security-articles/fix-windows-boot-configuration-data-file-is-missing-error-958873.html