Disk cloning has become a common practice for upgrading to a larger hard disk drive. Drives are cloned to make a similar copy and use the cloned copy and original drive together. Also, many virtualization tools are being used to virtualize the physical hard disk drive. The physical hard drives are virtualized to create virtual hard disk drives, and several virtual machine clones are created with the existing Virtual hard disk drives. As these are identical copies, the chances are that these copies may have identical disk signatures. When you use both disks with identical signatures at the same time, you may run into the Disk Signature Collision problem. //

Admin CMD:

diskpart
list disk 
select disk x
uniqueid disk
uniqueid disk id=4B750CFE-20F6-43C4-A2C7-98166F463722