A disk signature is a unique identifier assigned to a physical disk or volume. It is used by the operating system to identify and track disks, and to ensure that data is written to the correct disk.Disk signatures can be used to troubleshoot disk problems, and to recover data from failed disks.
There are a number of different ways to check the disk signature of a disk. One common method is to use the Disk Management utility in Windows. To do this, open the Disk Management utility and select the disk you want to check. The disk signature will be displayed in the “Disk Signature” column.