SD Card Formatter is a software that provides quick and easy access to all SD, SDHC, and SCXC memory card formats. It's designed so you can get rid of everything saved on your SD memory card all in one go.
It's advisable to use SD Card Formatter to get better performance out of your SD cards, since they can crash with everything being sent to your cellphone via messaging services.
All you have to do is connect your SD card to your computer and run SD Formatter. Once it's recognized by your system, you just click on the 'Format' button and everything on the card will disappear in seconds.
In addition, since all SD, SDHC, and SDXC memory cards have a 'protected area' as a means of securing certain data, this SD formatter won't delete anything saved there.