mhu 
Hi, I installed Windows CE correctly and all is running well. I can connect it to my PC and transfer files as normal. HOWEVER, whatever I wrote to “\Windows” folder (e.g. driver for Performax controller) is all lost and the folder restored to original when I off and on. But, everything I copied to NAND remains. This is something to do with Windows CE or the NAND card. Does anyone know how to resolve this problem? Many thanks, MHu