Not sure where to post this as it's really an OS query but I can only see Windows Software forums and Windows wont fit on these any more...

I've got a dozen or so of the Asus EEE PC Netbooks that currently have Windows XP on them, but with it finally becoming end of life in the next few months I need to find something I can put on these netbooks.

The issue is storage. They have a 4GB fast SSD and an 8GB (very) slow SSD so I need to find an OS that I can put on the 4GB partition so that they can just power on the netbook and get on the internet and not be able to change any settings so they dont get buggered up.

Any suggestions/ideas please?