How data loss occurs from VBR

A VBR (Volume Boot Record is a type of boot sector, stored in a disk volume on a hard drive. it is also known as a partition boot sector or a volume boot sector. It has the code for booting programs (generally but not essentially, operating systems) stored in other parts of the volume. On hard drive, it is the first sector of an individual partition on the device, with the first sector of the entire device instead being a MBR.

Some dual boot systems, such as Ntldr.exe, take copies of the bootstrap code that individual operating systems install into a single partition’s VBR. It store them in disc files, loading the relevant VBR content from file after the boot loader has asked the user which operating system to bootstrap.

In certain file system formats, in addition to bootstrap code, the VBR contains a BIOS parameter block that specifies the location and layout of the principal on-disc data structures for the file system.

The VBR resembles the MBR in that it contains two elements:
1. Hard disk drive parameter block: the hard disk drive BPB contains specified information about the location and layout of the principal on-disc data structures for the file systems, e.g., about the volume, its size, the number of hard disk drive sectors it uses, the size of the clusters, and the volume label name.

2. Volume boot code: the program or volume boot code is either directly invoked by the machine’s System ROM BIOS or indirectly by the MBR or boot manager (called chain loading). This begins the process of loading the operating system. For DOS and Windows 9x & Millennium file systems, this is the IO.SYS file.

VBR is the most important part of any hard drive. It helps user in executing any program stored on the particular volume of a hard drive. The VBR of the FAT file system is different from the NTFS’ but its BPB is same.

Sometimes when we start our system, we see some error messages like “Non System Disk” or “Disk Error….”. After we fail to load from it and also fail from a floppy boot attempt, the partition becomes unbootable. This situation usually occurs due to the Volume Boot Record corruption. In these circumstances, the particular disk partition become inaccessible and it may lead data loss and you need partition repairing and data recovery to recover your lost data. Microsoft provides the patch of this problem. You can repair your VBR with inbuilt system utility called Fixed Disk Editor by follwing these steps: -

1. Copy the data from a hard drice with the identical OS. There are two approaches for getting the data back.
2. First method is to install the second disk in the computer, restart Micro-Scope, and copy the sectors from healthy to affected hard drive.
3. Second method is to copy the sector to the other storage media and then transfer it to the drive being reconstructed.
4. In either case, the volume boot record is placed at Cylinder 0, Head 1, and Sector 1 on the healthy drive. Copy this data to the same location on the damaged drive. Exit the Fixed Disk Editor.

In this way, by following this method, you can repair or rebuild your VBR, but if you fail to do this, your drive volumes can’t be accessed. These situations may casue loss of all the data stored on the particualr volume or drive partition. In such conditions, to restore your lost data, data recovery software is required.

Data Recovery software will help you in recovering your data. The Data Recovery Software will recover the data from your damaged hard drive and save it to another storage media. You need to install data recoverry software on a healthy system and attach you damaged drive with this system. With this software, you can scan your drive and can restore the data on another hard drive. in case of VBR, you need to use Windows Data Recovery Software.