Mon Apr 11, 2016 2:24 pm
Try it in win10 using diskpart
Hold or right click start, select 'command prompt (admin)', then 'diskpart', then use 'list disk' or 'list volume' whatever works for you. Select the disk or volume that is your sdcard, then clean it.
For example, say disk 0 is your sdcard:
diskpart
list disk
select disk 0
clean
select disk 0
format fs=fat label="sdcard" quick
assign letter=h
exit
exit
DNPNWO