Right-click the entry with the error mark, select Uninstall.Ģ. If there is a yellow exclamation point ( ! ) or question mark ( ? ) next to the device, try to refresh the drivers.ġ. NOTE: The card reader will appear in two places: Disk Drives and Universal Serial Bus controls as USB Mass Storage.

NOTE: It is recommended that you plug your card reader to the back USB port on your PC to ensure that there is enough power from the USB port for the card reader to be detected properly.ģ. SOLUTION 2 - Verify the reader's status under Device Manager. NOTE: No additional drivers need to be downloaded for the card readers as they are native to the above mentioned supported operating systems.įor Mac users, see Troubleshooting USB device on Mac SanDisk card readers support Windows Vista, Windows XP SP2 and Windows 2000 SP4, Windows 7. SOLUTION 1 - Verify if minimum system requirement is met.