In order to fix the issue, press Windows + R key combination, type devmgmt.msc, and click OK. Expand the Universal Serial Bus controllers list, right-click on the driver, and press Uninstall. Reboot the PC, connect the phone using the USB cable, press Scan for hardware changes icon from Device Manager, and try to access your memory card. If you still have problems, I recommend that you visit a local service shop.