My Micro SD says it failed to start. I think it's always been like this since I put in a new card. It works OK but it's very slow and should be much faster (Lexar 633x). It only runs about 24MB/s reads. Any ideas?
Stupid question probably but have you tried simply taking it out and putting it back in again? Also try booting up without it in, then putting it in... I've had mine not show up at all sometimes!