Mft Bitmap Corrupted – How To Fix

NTFS (New Technology File System) stores virtually all kinds of files and folders on the hard drive with the help of special system files, called metadata files. One important metadata file is $Bitmap, which is also known as ‘Cluster Allocation Bitmap’. This metadata structure is located at 6th record of MFT and contains a map depicting used and unused cluster information.

In other words, $Bitmap represents information of volume clusters, which have been used and which are available for use. Practically, there can be instances that might corrupt this $Bitmap and necessitate you to perform some hard drive recovery operations and fix the problem.

MFT Bitmap corruption is a common problem and can occur for several reasons. You can detect these problems by running chkdsk command Apparently, it can also be detected when you try to copy some files to a drive, which is infected with $Bitmap corruption. On trying to copy the files, this might prompt you with errors like:

The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on
the volume partition_name.

In other cases, you may find hard drive partition reporting incorrect information about available and used clusters.

How to Solve?

Not all, but most of such issues can be resolved by running chkdsk /f command on the hard drive partition in question. In its report, it will show that $Bitmap file needs to be adjusted, followed by error correcting statement and finally that Windows has corrected the file system problems.

Reportedly, there have been many situations, in which chkdsk has been unable to solve the $Bitmap corruption. Sometimes, it might report that file system repair has been successfully done, but when you repeat the same behavior, corruption exists. So, the best solution to get rid of $Bitmap corruption problems is to reformat the hard drive partition to NTFS file system and restore lost data from last available backup or by using a Hard Drive Data Recovery software.

Hard Drive Recovery software are efficient tools that can scan a corrupted or formatted drive and extract best possible data safely.

Stellar Phoenix windows data recovery is one of the safest Hard Drive Data Recovery applications. The software provides few-clicks data recovery plus a list of advanced features, such as disk imaging, disk cloning, and others. It is compatible with Windows 7, Vista, XP, 2003, and 2000.

Access Database Error After Jetcomp.exe Fails

The inbuilt repair utilities Compact utility and Compact Database method in MS Access allow you to perform Access Database Repair in many cases. The Jet compact utility (JETCOMP.exe) is one such recovery utility, which compacts the databases created with Microsoft Jet database engine 3.x and 4.x. This stand-alone utility can recover more databases in comparison to MS Access Compact utility and the Compact Database method because it does not attempt to open or close the Access database before compacting. In case, this utility fails to perform access repair, then the user needs to use effective Access Recovery software.

As a practical example, when a user uses Jetcomp.exe to compact an Access database, he encounters the below error message:

Records can’t be read, no read permissions on MyDatabase.

Where MyDatabase is the Database Name

The main reason for the above error is that the Access database has been corrupted.
In such circumstances, the user can either create a new Access database or perform complete Access Repair by using a third party application named Access Recovery software. Access Recovery application is a high end application, which incorporates advanced scanning algorithms to provide complete access database repair. It provides an interactive user interface, which makes this repair software easily understandable without any prior technical knowledge.

Stellar Information Systems Ltd. provides the best Access Recovery software named Stellar Phoenix Access Recovery. This Access recovery software recovers and Repair Access database objects, such as, views, tables, forms, queries, macros etc. It recovers the relations between the tables. It also recovers the name of the tables. This Access Repair software supports Access 2007, 2003, XP (2002) and 2000. It supports Windows Vista, XP, 2003, 2000, NT, Me and 9x. The demo version of this Access Recovery software is available on Stellars website, which allows the user to preview the lost database components.