I have a small problem with a 4GB SD card.
I formatted with my phone and how bad surprise, I missed 2GB. I inserted on the computer, I do "right click" on My Computer > Manage > Disk Management! and there it appears. Yes but there are 1.9GB healthy and Unallocated 1.89GB. How to recover the non-allocated. If this is possible of course. I was told to do: (convert:/fs:ntfs) on command prompt but still the same.