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Installing XP on a Compaq laptop

Discussion in 'Windows XP' started by pancake528, Feb 21, 2013.

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  1. pancake528

    pancake528 Thread Starter

    Feb 21, 2013
    I can't install XP (Professional 32 bit) on this Compaq laptop. The laptop had Vista Basic, and at one point could not go past the loading bar. I have a XP disc and want to install it. When I do it goes up to the beginning setup screen, where it ask what you want to do: i.e. Reformat, Install, Create parition, etc. But when I tried it with other computers it worked (with my Toshiba Satellite Pro), but with this it says:

    "Unknown disc"

    "There is no disk in this drive"


    Then it get a blue screen. "SETUPDD.SYS" error.
  2. flavallee

    flavallee Trusted Advisor

    May 12, 2002
    First Name:
    What's the model name and complete model number of that Compaq laptop?

    If you don't know for sure, advise what the product number(P/N) and model number(M/N) on the sticker is.


    Are you using an original or copied Windows XP Pro disc?

    Does it contain SP3?

    Do you have the 25-character serial number to activate it after it's installed?


    Have you confirmed if there are Windows XP drivers for all of the devices in that laptop?

    If there isn't, downgrading from Windows Vista to Windows XP is an exercise in futility.

  3. drmacpccom


    Feb 22, 2013
    It is possible you have a computer specific windows xp copy. Sometimes when you have a computer, the disc that came with it will only install to a particular computer model. If this is not the case, then your cd rom in the computer may have issues reading the disc, and you would want to ensure it works by trying another cd or seeing if that cd has some smudge on it.

    I hope this helps.
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