When you plug a USB drive into a computer, the Windows operating system generates a unique identifier using USBSTOR.SYS . This ID follows a standard format: : Indicates it is a USB Mass Storage device.
Demystifying "USBSTOR\DiskGeneric-USB-Flash-Disk--7.76" The string is a specific Hardware ID generated by the Windows operating system. It identifies a connected storage device controlled by the system's universal mass storage driver. Usbstor Diskgeneric-usb-flash-disk--7.76