What you want to ask is why did diskgenius modify the disk signature? The reason is to avoid conflicts and restore disk access.

1. Avoid conflicts: the disk signature is used to uniquely identify a disk, and the signature of each disk should be unique. When two or more disks have the same signature, the operating system will conflict, resulting in the disks not being recognized or accessed normally. By modifying the disk signature, we can avoid this conflict and ensure that each disk has a unique identification.

2. Restore disk access: In some cases, the signature of the disk is damaged or lost, which makes the operating system unable to correctly identify the disk. By modifying the disk signature, the normal access to the disk can be restored, so that the operating system can correctly identify and use the disk.