Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I just bought a Micro SD a month ago, now I want to use it and I plugged it in into my pc. The original size of the SD is 32 GB and on my PC it's showing up as 55MB, I also tried to format it and tried it on other devices. Is there anyway I can fix this problem? Or is it just completely broken?

share|improve this question
Make sure that the entire sd card is formatted and not that there is 55 mb of partitioned space and 31 gigs of unpartitioned space. On a mac check disk utility and on windows check disk management. – agz Jun 26 '13 at 21:23

One possible problem is that the Micro SD card you bought is a fake.

If you suspect this, you can use a program that will fill it up with junk and determine what's the maximum size of junk it was able to fill the card with.

One such program that I know of is testdrive.exe which you may download here:

I once ordered a fake Memory Stick Pro Duo and was able to figure it out with that program.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.