Test the drive on another computer to isolate hardware failure. Uninstall the device via and restart. Check Disk Management to see if a drive letter is missing.
[Start Menu] ➔ Search "Device Manager" ➔ Expand "Universal Serial Bus controllers" Look for these visual indicators: sandisk usb driver
Step-by-Step Troubleshooting for Unrecognized SanDisk Drives Test the drive on another computer to isolate
Find all previous entries (marked in green or gray). Select the entries. Click the Trash Can icon (Uninstall Selected Devices). sandisk usb driver
Old driver files can block new connections. Use the free tool by NirSoft to clear them safely. Download and run USBDeview as Administrator.
Your (e.g., Windows 10, Windows 11, macOS)?