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partitions of your hard drive
What is the MBR
The MBR (stands for “Master boot record”) is a boot sector (a region of your hard disk) that holds information about the partitions of your hard drive and acts as a loader for the operating system you’re running.
The Master boot record is created when you first install Windows, on the first partition you create. It’s the first 512 bytes of your hard disk.
If the MBR is damaged, you won’t be able to boot into Windows. All Windows versions – Windows XP, Vista, 7 or 8 – use MBR and, if damaged you won’t be able to boot.
It can be damaged by certain viruses that target the MBR to replace it with their own code or in cases when you dual boot with a Linux distribution (see Error: no such partition. Grub rescue article).
Backup
You can backup the MBR since it’s stored on the hard disk and you restore it later, when needed.
You only need one command to backup the MBR:
dd if=/dev/sda of=/path-to-save/mbr-backup bs=512 count=1
In the above command, /path-to-save/mbr-backup is the path where you want to save mbr-backup.
Restore
Important: Restoring your Master boot record with the wrong partition table will make your data unreadable and will make it very hard to recover your data later.
You can restore the saved Master boot record using this command:
dd if=/path-to-get/mbr-backup of=/dev/sda bs=512 count=1
In this command, /path-to-get/mbr-backup is the path where you have the mbr-backup stored.
hiren boot
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You can solve it with this tools but should be latest
We can't take backup of our file system. i Think.
Hard Disk Partition
The MBR (stands for “Master boot record”) is a boot sector (a region of your hard disk) that holds information about the partitions of your hard drive and acts as a loader for the operating system you’re running.
Clone you HDD to or keep HDD image
On the new computer, run Zinstall Computer Rescue Kit.
It will automatically detect the old drive. Confirm the selection, and press Next.
If you want to only recover some of the programs, or some of the files, use the Advanced menu to select which ones you want. If you want to just recover everything, simply click Next to continue.
You will be presented with a quick summary of what's about to be recovery - press "Go" to start the process
MiniTool Partition Wizard it's the best program to make backup for MBR,GPT