Now I used English version of Windows 98 SE. The compilation is successful. When I boot the usb up, it pops up a window titled Setting up Hardware and another windows titled "Insert Disk". It tells me to insert the disk labeled "Windows 98 Second Edition CD-ROM", and then click OK. It requires a file called ec.sys I clicked Cancel It also requires a file called battc.sys I clicked Cancel again Finally it shows me the desktop. I cannot use the mouse nor the keyboard at that moment. It seems stuck. How come? Please help. PS. I remember that I tick all the boxes in Programs/Drivers/ in WinBuilder. After all compilation, I copied all files in C:\1\Temp\ into my USB stick, where C:\1\ is the winbuilder directory.