Hi karan,
Thank you for posting your query in Microsoft Community.
From your issue description I understand that, you are receiving error: “The Windows Boot Configuration Data (BCD) store file sontains some invalid information: 0xc0000034”
I can imagine the inconvenience you have experienced. Don’t worry; we will certainly help you.
Let’s follow these methods and check if it fixes the issue.
Method 1: To run the Bootrec.exe tool, you must start Windows RE.
To do this, follow these steps:
- Place the Windows 7 installation disc in the disc drive, and then start the computer.
- Press a key when you are prompted.
- Select a language, a time, a currency, a keyboard or an input method, and then clickNext.
- Click Repair your computer.
- Click the operating system that you want to repair, and then clickNext.
- In the System Recovery Options dialog box, clickCommand Prompt.
- Type Bootrec.exe, and then press ENTER.
- Type bootrec /RebuildBcd, and press Enter**.**
For more information refer the link given below:
How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows
http://support.microsoft.com/kb/927392
Method 2: Refer to the suggestions from this link.
Your computer may freeze or restart to a black screen that has a "0xc0000034" error message after you install Service Pack 1 on Windows 7 or Windows 2008 R2
http://support.microsoft.com/KB/975484
Hope this helps. If the issue persists or any Windows related queries or issues related to Windows Operating system, please get back to us. We are here to assist you.