Well I'm not sure about converting - I need to re-read the stuff above and/or research. I guess I was just surprised having thought that NTFS was the newer, and therefore better(
) system. I used it previously on my home laptop which I formatted and loaded from scratch. This one came preinstalled and I only discovered the format by right clicking the pre-partitioned drives. I might wipe he whole thing sometime though as I get hacked off with most of the supplied stuff - when I can work out how to keep/re-install the utilities I want from acer.