XP: Find Your Windows Product ID / CD Key Code in the Registry

Need your Microsoft product id but can’t find your original documentation?


We often need to know the product id but most of us never keep up with the original packaging which contains this vital number.

–Prior to XP:

Now, don’t go changing this number…

Navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion

The number is listed under ProductId

Look but don’t touch.

–XP:

Thanks goes out to j.cox for pointing out the error (see comments below). We had forgotten about this “new feature.” Anyway, to get around this you can download and run the application required to view the XP install code found here:

http://www.mvps.org/marksxp/WindowsXP/prodkey.php

The Conversation

Follow the reactions below and share your own thoughts.

  • Nicole

    I am not able to access (forbidden) the Magical jelly bean to find my product key. My 2yr old ripped part of the sticker off of the top of my computer and now I can’t reinstall the sound device I removed by accident so their is no sound on my system now. Can someone help me find my product key?

    • Mike

      You probably don’t need your product key for this.
      You need instead the driver disk for your sound device.
      You can most likely download it from the computer manufacturer’s site if you have misplaced the cd.

  • Rohit

    there is a easy way too
    just right click my computer ->click on properties
    and you will find the product id

    • Vin

      The Product ID an encrypted form of the 25 digit product key. Use Magic Jelly Bean Keyfinder to locate your installed product key

    • tommytom

      > Ignore!!! this is NOT the product key, not enough digits!

  • Bob

    Found a laptop computer in seattle. Can you help me find the owner. It is an averatec with window vista.

  • Anonymous

    i have a program that show me “my id {5B7C-870B751CF635C790-C36C1EA204A7-D4CDF267635B-AC01} ”
    what id it is? i want to change if it is possible. i’ll wait for your answers

  • Anonymous

    Oh yeah! Thanks man. You saved my bacon.

  • Andy

    Thanks a lot Man :) you saved my 40 $….

  • Anonymous

    my notebook cant login…because my note book always wanted the product key to activate it, where can i get it ???…the note book free disc is lost.i dont know wher to find it. can u help me plis ??

  • Christina

    Hello please help. I lost my activation key and dont know where to look for i so i can register.

  • Pawan Singh

    You can also know the Windows XP product key by looking in System Properties-
    in run dialog box, type “sysdm.cpl” or press [Windows+Pause] button simultaneously.
    In General tab look for the 20-digits Product ID in “Registered to:”section
    in the format:
    xxxxx-xxx-xxxxxxx-xxxxx

    e.g. 55274-642-4643641-23082

    • Mjsoller

      This did not work because my product key requires 25 digits

  • Inks123

    can I trick my external hd into thinking that it is connected with my old system?
    eg Alpine HDA5460

  • Alem_f

    MOLIM CD KEY

  • singAsong4DAchildren

    only from january first to new years eve

  • Ihatemac

    That’s the Product ID not the Product Key

  • Gordon

    I was given a bunch of computer towers that were stripped out, and have the Product Key number stickers on the side.

    I just loaded a system with my personal copy of Windows XP Home Edition, but when I change the registry entries to the Product Key, I will also need to locate the matching Product ID.

    Is there any way to locate this data without the original load of the OS?

  • shivendra patel

    please sand windows xp product key

  • meshka spence

    i dnt knw my windows product key and becuz of dat i cant get to acess windows

  • Chris

    The hard drive on my computer has broken and the product key has rubbed off so I can’t read it. Is there anyway I can find out what the product code is?

  • Chris

    The hard drive on my computer has broken and the product key has rubbed off so I can’t read it. Is there anyway I can find out what the product code is?

  • Rick_yess

    can get all your prduct keys from a program called WinTools it had everything including deleting passwords