My storage doesn't exist I have a samsung S3 mini GT-18190.It shows that the internal storage is 16GB available space and phone storage is 17MB. But when I plug my GT-18190 to my computer only 17MB partition displays. A 16GB partion doesn't display.Please can u help me for this problem.
Make sure you have right drivers intalled on PC for your phone.

Try rebooting after that.

Regards.