I'm having the same problem here, noway to fix it My Z83-4 was fully reinstalled last May with the Creator Update and the drivers provided in the Win 10 drivers thread. All worked fine at the beginning, including the sd card formatted ntfs and configured as a subdirectory "c:\users\mydata\" (drive letter removed). After some time the sd card began to disappear and appear again after some time without a specific event to cause it. Now disappeared completely and I cannot manage to see it again. The sd card (a 64Gb C10 U3 manufactured by toshiba) keep working fine on other computers. I can exclude the card reader and the rest of my z83-4 is broken in any way and I can say it is definitely an issue with the driver. Is it possible that someone from Minix tell us how to manage this issue or if a fix for this issue is under preparation and when will be released?