The Windows XP CD, no matter if it is OEM or retail is already a start
up cd/dvd. It should automatically boot up to the CD-ROM. The only
thing that could be preventing it from doing so, is that your BIOS is
not set up to boot from CD-ROM.
To get into your BIOS, you need to watch the beginning when your
computer first starts up. It might say something like press DEL to
start setup. Some common keys to get into the BIOS are: DEL and F8.
Once you get into the BIOS, you need to make the CD-ROM your first
boot device. Right now it is probably set up to boot from the Floppy
first, and then the hard drive.
If you cannot figure it out with the generic instructions, please
answer the following questions and I will try to give you more
What make/model computer do you have?
If it is custom made, what motherboard is installed? You may have a
user's guide for the motherboard. If not, you may have to look inside
the computer for the part number/model of the motherboard if you are
not sure what it is. Sometimes it will also give a BIOS version when
you first start up the computer. (If it disappears too fast, try using
the PAUSE button on the keyboard).
Does your computer currently have a working operating system
installed? If so, what is it?
If there is not a working operating system, is there a partially
working operating system?
With regards to a USB Flash Drive as a startup disk, most BIOS do not
support this. If this is possible with your BIOS, I will let you know
when you tell me what model you have.
I look forward to your response. All the best,