In this window you should select a hard disk for recovering the Master Boot Record (MBR) along with track 0.
Recover disk signature check box
If you have selected MBR recovery at the Content selection step, the Recover disk signature check box will be in the bottom left corner. Disk signature is a part of a hard disk MBR. It is used for uniquely identifying the disk media.
We recommend that you select the Recover disk signature check box due to the following reasons:
We recommend that you clear the Recover disk signature check box when:
In this case, Acronis True Image generates a new disk signature for the recovered hard drive, even if you recover to the same drive.
Having selected a hard disk drive and specified whether to recover the disk signature, click Next to continue.