In the Menu Screen did you use Option 0) to Change the Setting in USB-Harddisk instead of USB-stick ? Because that makes that rdummy.sys is used and this is essential for using USB-Harddisk. rdummy.sys makes Fixed USB-Harddisk seen in XP Setup as Removable Device. Read more about it in the Help File. wimb Yes I did.. maybe i should try on thumb drive but i only have a 8gb usb stick and i cant format it using petousb