step 1 : Buy an USB Flash Drive (at least 2GB). When you do this tutorial, please make sure your computer/laptop/PC has a CD-ROM (or DVD). so, now you have 2 computers, with CD-ROM support and without CD-ROM support (e.g Acer Aspire One , Asus EEE-PC). step 2 : Download this software pack (Komku-SP-usb.exe - ) 1.47MB UPDATE 1 : this software pack contains 3 application : -BootSect.exe (Boot Sector Manipulation Tool) -PeToUSB ( http://GoCoding.Com ) -usb_prep8 (Prepares Windows XP Setup LocalSource for Copy to USB-Drive) step 3 : Double click Komku-SP-usb.exe a window will appear... and click Install step 4 : Insert your USB Flash Drive. When I made this tutorial, I was using 4GB Transcend USB FlashDrive... Locate folder C:\Komku\PeToUSB\ double click PeToUSB.exe a window will appear like this... Destination Drive : select USB Removable check on Enable Disk Format check...