PC refuses to boot

I Just now tried to install Win XP SP3 on a 8GB flash disk, during the proccess rebooted and on boot showed this message:

windows could not start because of a disk hardware configuration problem.
could not read from the selected boot disk.
check both path and disk hardware.
please check the windows documentation about hardware disk configuration and your hardware reference manuals for additional information.

What am i supposed to do?! im trying to Boot from my windows cd-rom but even that doesnt load... plz hlp \=
 
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