If you have access to another computor Google for "easypeasy" for netbooks You can download it , it's free. Then load it onto a USB drive as the instructions on the web site,
Then boot to USB and install the new Linux operating system. Its free and it works, you will not need anti virus software and it includes Open Office which will open office 2007 files and work with them. Also Networking is easy.
Trevor
May 2009