I have the SD Card for my Macbook Pro running Windows. Every time the laptop goes to sleep and wake up, the SD Card disappear. It only comes back if you restart - I tried install new BootCamp driver, reinstall the USB hub, reset SMC but none help so far.
I have been searching for solution and the only related topic I saw is SD Card Slot Disappears After Sleep (Gone Until Reboot) on Apple forum. Look like lots of people having my problem too.
Anyone got a permanent working solution or less annoying than reset the computer ?