Step 1: Download the Image from here (this webpage)
Step 2: Take the MicroSD card from your Raspberry PI and put in in your PC
Step 3: Unzip the download until all you have is the IMG file (Use Winrar or 7zip)
Step 4: Open Win32diskimager32 and point it to the image and your SD card drive.
Step 5: Click Write.
The tool will overwrite the card entirely, there is no need to format it at all.