MBR is corrupt. Error code 0x45d

Question

I have a Toshiba computer with Windows 7 32 bit installed on it. One day it was working fine and then the next day I went to boot it up and then nothing. It is just a black screen. I have ran the recovery from CD and everything checks out successful except one thing. 

It came up as the following:

Root cause found: 

MBR is corrupt

Repair action: Disk metadata repair failed

Error code= 0x45d

I have searched on the forums and tried to run the bootrec.exe but everytime I tried it it would tell me that it was an invaild internal code. I have tried to start the computer in safe mode but as soon as I start it it wants to run system recvoery. If I take the system recovery CD out of the drive it tries to start and says disk error. Press ctrl alt delete to restart.

I was wondering if anyone can help or have suggestions what to try or retry next?

Thank you

Answer 1

Hi,

I would suggest you to perform Automatic repair through an installation media and see if it helps you to repair the system files or not. For performing the task, I would suggest you to try the steps provided below and see if it helps.

Method 1: Run Startup Repair from Windows Recovery Environment (WinRE)

To run Startup Repair from the Windows Recovery Environment (WinRE), follow these steps:

1. Insert the Windows installation disc into the disc drive, and then start the computer.
2. Press a key when the message Press any key to boot from CD or DVD appears.

If your PC does not detect the media automatically

- During the restart process, read the screen for any instructions that explain how to interrupt normal startup and enter the basic input/output system (BIOS) setup utility. Most PCs use the F2, F10, ESC, or DEL

key to begin the BIOS Setup. - Look for a tab in the BIOS Setup Utility that is labeled Boot Order, Boot Options, or Boot. Following the directions on the screen, use the arrow keys to go to the Boot Order, then press Enter. - Locate the CD, DVD, or USB flash drive (this might be called Removable Device) in the Boot list. Following the directions on the screen, use the arrow keys to move the drive up so that it appears first in the Boot list. Press Enter. The boot order sequence is now changed to boot from the CD, DVD, or USB flash drive. - Press F10 to save your changes and to exit the BIOS Setup Utility. Select Yes in the confirmation window. The PC will restart.

1. Select a language, a time and a currency, a keyboard or input method, and then click Next.
2. Click Repair your computer.
3. In the System Recovery Options dialog box, select the drive of your Windows installation, and then click Next.
4. At the System Recovery Options dialog box, 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.

For more information about System Recovery Options, see What are the system recovery options in Windows?

For more information about Startup Repair, see Startup Repair: frequently asked questions.

If you are using Windows 7 then the link provided below might help you to download and create installation media.

Download Windows 7 Disc Images (ISO Files)

Method 2

If issue persists, try to rebuild BCD using the Bootrec.exe tool. To run the Bootrec.exe tool, you must start Windows Recovery Environment (Windows RE). To do this, follow these steps: 

1. Put the Windows 7 installation disc in the disc drive, and then start the computer.
2. Press a key when you are prompted. Select a language, a time, a currency, a keyboard or an input method, and then click next.
3. Click Repair your computer.
4. Click the operating system that you want to repair, and then click next.
5. In the System Recovery Options dialog box, click Command Prompt.
6. Type Bootrec.exe, and then press ENTER.

Refer to the following link for more information:

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**

Hope this would help. If issue still persists post back with current status of your computer and result of the proposed suggestion, we will be happy to assist you.

Regards,