Go to the Raspberry PI Downloads Page.
Download “NOOBS Offline and network install” by clicking Download ZIP.
Once downloaded Open the zip file and copy the contents to an SD Card.
Insert the SD Card into your Raspberry PI.
Turn on your Raspberry PI by plugging it in.
A screen will show up with some options
-Select English US or your language
-Select Keyboard us or your keyboard language
-Select the Raspbian Check box
-click the install button at the top.
When the install finishes you will need to click OK
Once Raspbian has installed there will be a configuration menu. Just use the arrow keys to select Finish unless you have specific configurations you want at this point.