Micro SD cards are small, portable memory units used in electronic products. Digital cameras, MP3 players and cell phones use micro SD cards as added storage. However, if you no longer need the data currently stored on the micro SD card and want to clean up the data, it's possible to format the card, returning it back to its factory settings.
Plug the micro SD card reader into a USB port on the computer system.
Slide the micro SD card into the micro SD card reader. The computer detects and displays the card.
Click "Start," then "(My) Computer," and then right-click the removable device icon.
Click "Format" in the pull-down menu. A new window loads with formatting options. Back up any information you wish to save on the micro SD card. All the data is completely erased once the card is formatted.
Click "OK" and the computer removes all of the data from the micro SD card, cleaning it and returning it back to its factory settings.