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Tuesday, July 26, 2011

Windows 7 - Recovery of Corrupted Hard Drive in Case of MBR Corruption


Windows 7 - Recovery of Corrupted Hard Drive in Case of MBR Corruption



A Master Boot Record (MBR) is used to hold the primary partition table of the disk and also to boot the operating systems. It is the first program that is accessed when the system is started as the MBR contains the critical boot information such as how many partitions are there, which partition is the active partition, and so on. Due to its significance, corruption in the MBR can prove to be fatal for the hard disk. The corruption can happen due to virus infections, human errors, abrupt system shutdown, etc. In such cases, you should use appropriate methods to resolve the issue. However, if you are not able to address the situation then you should use a third-party hard drive recovery software to resolve the issue.

Consider a scenario wherein you have a Windows 7 system. When you switch it on, it fails to start as its Master Boot Record (MBR) has been corrupted. You then try to run the Startup Repair tool to fix the MBR. However, the tool shows that there are no problems.

Cause:

The root cause for this problem is that there could be a flash drive inserted in the computer. Because of this, the computer hardware sometimes acknowledges it as the system partition. And the Startup Repair tool scans the flash drive in place of the original system partition on the hard disk. As there is no corrupted MBR on the flash drive, no problem is detected.

Resolution:

To resolve this issue, you should perform the following steps:

Eject the flash drive from the computer.

Insert the Windows 7 installation DVD in the disc drive.

Start the computer.

Press any key when there is a prompt to do so.

Select language, time, currency, keyboard, input method, etc.

Click Next.

Click the Repair your computer option.

Click the operating system that is to be repaired.

Click Next.

Click Command Prompt in the System Recovery Options dialog box.

Enter Bootrec.exe/fixmbr and press Enter. This command would fix the MBR issue.

However, if you still are not able to resolve the issue then you should use a third-party hard drive recovery software to recover the trapped data in the system. Such read-only tools are able to recover hard drive by employing fast yet sophisticated scanning algorithms without overwriting the original data.

Stellar Phoenix windows data recovery is a hard drive recovery software that enables you to recover the data from corrupted hard drives based on either FAT or NTFS file systems. It is also capable of recovering data from other storage media such as pen drives, iPods, external hard drives, etc. In addition, this Windows hard drive recovery tool is able to recover deleted emails from Outlook Express and Microsoft Outlook. It is compatible with Windows 7, Vista, Server 2003, XP, and 2000.

The author is doing research work on data recovery software for hard drive recovery and also analyses how to perform windows 7 recovery

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