|"What I am trying to do is reinstall XP completely but I need it to boot from external CD and no matter how I change the boot sequence in BIOS it just wont boot from it."|
Upgrade XP CDs are probably not bootable.
It must be a full version CD.
If it's a copy, are you SURE it's bootable ? Have you tried it on other computers ? The original disk must be copied using "disk at once" or similar, otherwise it's NOT bootable.
The Product Key on the official Microsoft label that's on the outside of the case only works with OEM CDs - it has to either be
- an XP re-installation CD that came with the same brand name computer model, or one in a Recovery disk set for the same model
- a regular Microsoft OEM CD or the same version as on the label - Home or Pro - it has the Microsoft holograms and "For distribution with a new PC only." printed on it.
- an XP re-installation CD that came with a different brand name computer model, or one in a Recovery disk set for a different brand name model, will probably refuse to install Windows except on the model it came with or was for.
In order to boot from a bootable optical disk in a USB external optical drive , there must be a selection in the boot order or similar list in the bios Setup that is suitable that you can place first or at least before hard drive - e.g. USB connected drive, perhaps removable drive, SAVE bios settings.
Even if there IS such a selection, in most if not all cases, you CANNOT load the contents of the XP CD from an external optical drive, because the initial files CANNOT recognize the external drive, unless it is a model that was available when XP was first released circa 2001. (I don't recall there being ANY USB external optical drives back then - all laptops at that time had built in optical drives).
I have read, and it's been reported to me, that if the XP CD DOES boot, all you see is a blue screen and nothing further happens.
Loading the 6 floppy set that loads the initial files normally loaded from the CD when you can boot from it doesn't work either - the CD can't recognize the USB external optical drive.
If you cannot boot the computer from any USB drive (you can't boot from a USB flash drive in any case unless you prepare it so it's bootable first), then your only choice is
How to install XP when you can't load files from the XP CD on the computer, and when you cannot set your bios Setup to boot from a USB drive...
See response 5, 6, and 7:
If you CAN boot from USB devices, if you prepare a USB flash drive it so it's bootable first, you can load Windows from that
Search the web for something such as: install XP from a flash drive