MBR_CHECKSUM_MISMATCH Hard Drive Error and Recovery

Computer viruses are the self-replicating programs that can infect your computer system without your permission. Virus infection is one of the major reasons that cause data loss. These can be transmitted as a downloadable file or e-mail attachment or can be present on a CD or a diskette. To prevent against virus infection, Hard Drive Recovery experts always suggest installing a quality antivirus plus keep it up-to-date. An antivirus or security suite can detect and quarantine or remove harmful applications as worms, viruses, trojan horses etc. You should also use efficient antispyware and antispam software for complete PC protection.

Consider a practical instance, you turn on your Windows system and the boot process fails with the following error message:

STOP Error 0x0000008B


The error further describes four parameters: disk signature from MBR, MBR checksum calculated by operating system loader, MBR checksum that is calculated by system and reserved. Aft this error message, you can’t access your critical data.


The error message occurs due to MBR (Master Boot Record) checksum mismatch. When the MBR checksum calculated by the system doesn’t match with that of passed in by the loader, the system fails to boot with above STOP error. It happens when the hard disk is infected from virus.


In order to resolve the above issue, you need to follow these steps in order:

Scan your hard disk with powerful and up-to-date antivirus software. To perform this, you need to boot your system using a write-protected disk that contains the virus scanner. These applications can help to disinfect the system.

If your antivirus can’t fix hard disk infection, you need to reformat the hard disk and restore lost files and folders using recent data backup. In case, data backup is unavailable or it fails to restore the required information, you can use Hard Drive Recovery software.

Hard Drive Recovery applications are special tools that can recover and restore lost data in cases of logical hard disk crashes as file system corruption, operating system damage etc. With completely safe recovery process, these tools can recover all types of lost files and folders, including system and data files. Also, they provide several advanced recovery options. Such software are designed with graphically rich interface and hence you can use them quite easily.

Stellar Phoenix Windows Data Recovery is the foremost Hard Drive Recovery Software to recover the lost data including deleted e-mails. The software can recover data from corrupted, deleted, lost or formatted partitions and volumes. It supports FAT16, FAT32, VFAT, NTFS and NTFS5 file systems. The software is compatible with Windows Vista, XP, 2003 and 2000.


Simpson Raid is a freelancer for Stellar which offers data recovery software and file recovery programs for different OS and file system.