Step 1
Connect USB Pen Drive (256Mb or more)
Step 2
Download and Run USB Disk Storage Format 
usb_format.zip (34KB)
Step 3
Download and Run grubinst_gui grub4dos.zip (147KB)
Step 4
Copy grldr and menu.lst (from grub4dos.zip) to the usb drive
Step 5
Insert the BootCD (9.7 or newer) in the CD Drive and Copy everything from CD to USB Flash Drive
Step 6
Test Your USB Drive (read bottom of the page for troubleshoot)
Make sure you set your computer to boot from USB Flash Drive
To Enter the BIOS press the “Del” button on your keyboard. Alternatives are “F1”, “F2”, “Insert”, and “F10”. Some PC’s BIOS might even require a different key to be pressed. Commonly a PC will show a message like “Press [Del] to enter Setup” to indicate that you need to press the “Del” key. Some AMI BIOS require you to enable the option “USB Keyboard Legacy support”!
For AMI BIOS:
- Go to “Feature Setup”. “Enable” these options: “USB Function Support”,
“USB Function For DOS” and “ThumbDrive for DOS”. Go to “Advanced Setup”.
Set the “1st Boot Device” to “USB RMD-FDD”.
Reboot the PC and it now should boot from the Usb Stick. - Go to “USB Mass Storage Device Configuration”. Select “Emulation Type”
and set it to “Harddisk”. Go to the “Boot Menu” and set the “1st boot device” to “USB-Stick“. Exit the BIOS, saving the changes.
you can try “Emulation Type” to “Floppy” or “Forced FDD”.
For PHOENIX/AWARD BIOS:
- Go to “Advanced BIOS Features”. Go to the “1st Boot device” and set it to “USB-ZIP”.
Troubleshoot
If you get GRLDR error then use syslinux to boot grub4dos