This is absolutely infuriating. Two new lexar 32gb class 10 micro sd cards have issues. Two different computers running windows 7 were used and they cannot remove the "write protection." All other advice says to "move the switch to the unlock position" but microsd cards don't have the damn switch! The two usb adapters that came with the cards both work with another microsd card that doesn't have this problem but when using the two new ones, one of them doesn't even show up, and the other keeps disconnecting when trying to add files. I can copy or add files to it at the start, but a few seconds in it just disconnects.