Sorry,
before I get the Load dll.... message it says:

Verifying DMI pool data.... (sits for a few seconds)
then says.

Invalid System Disk
Replace the disk, and press any key.

Any Advice ..?

Thanks.

You have to load drivers.

What do you mean load drivers?

On my computer?

Or the boot USB?

The USB drivers are they loaded?Or enabled in BIOS?

How do I tell if the drivers are installed on the USB ?

and in the bios the boot order is set but i dont know how to enable in bios ?

You need to check your computer manual does it support booting from USB?

Booting from the USB flash drive
Now that you have formatted your USB flash drive and installed the boot files onto it, the next thing that you must do is to configure your PC to allow you to boot from the flash drive. This is all done through the computer's BIOS Setup. I can't give you specific instructions for this part, because every computer is different. I can give you a few pointers though.
You can access your computer's BIOS by pressing a specific key immediately after you turn the PC on. The key varies, but it is usually either [F1], [F2], or [Delete]. Once you are in the BIOS Setup, you should verify that all of your computer's USB options are enabled. This might include things like support for legacy USB devices or support for USB 2.0. If there is a time out setting for USB devices, you should set it to the max to insure that the system doesn't time out while waiting on the USB device to boot.
Next, find the section on boot device priority. Normally, a USB flash drive (which is usually listed as USB-HDD, but may be listed as a removable device) will have a very low boot priority. If the USB flash drive's boot priority is lower than the hard disk (listed as HDD) then the only time the computer would ever boot off of the USB flash drive is if the system were to fail to boot from the hard disk. You must therefore rearrange the boot device priority so that the flash drive has a higher priority than the hard drive.

I have set the boot order.
and I dont have a manual for my pc.

Is there anything that you know of that I can do to the usb drive to make it workable ?