Jul 22, 2013 - 12:23 PM
If you are planning on upgrading the Operating System (I would reccomend Ubuntu) you will need to get the installation disc and boot from CD.
Check this Guide:
Your computer does not have enough RAM to run newer versions of Windows So that is why i Reccomend Ubuntu http://www.ubuntu.com/download the installation process is near enough the same.
I hope this helps,