innovative project solutions is stockist of raspberry pi Class B.
open link http://www.raspberrypi.org/downloads
raspberry pi requirements quick-start-guide-v2 downlaod click here
i. Download the SD Association’s Formatting Tool
ii. Install and run the Formatting Tool on your machine
iii. Set “FORMAT SIZE ADJUSTMENT” option to “ON” in the “Options” menu
iv. Check that the SD card you inserted matches the one selected by the Tool
v. Click the “Format” button