The is a generic USB mass storage device commonly found in low-cost USB flash drives, MP3 players, and basic memory card readers. It typically uses a NAND flash controller chip (often from vendors like Alcor, SMI, or CBM) and identifies itself on a Windows system as a “USB2Disk” or “NAND USB2Disk USB Device.”
Look for (it may have a yellow exclamation mark next to it). It is usually under Universal Serial Bus controllers or Other devices . Right-click the device and choose Update driver . Click Search automatically for drivers . nand usb2disk usb device driver download
Right-click the drive partition and select . The is a generic USB mass storage device