XP: Find Your Windows Product ID / CD Key Code in the Registry
Contributed by AlexTheBeast 
Tagged: Windows 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:
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Nicole said on January 6, 2009
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 said on February 15, 2009
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 said on March 14, 2009
there is a easy way too
just right click my computer ->click on properties
and you will find the product id
Vin said on March 17, 2009
The Product ID an encrypted form of the 25 digit product key. Use Magic Jelly Bean Keyfinder to locate your installed product key
Bob said on May 19, 2009
Found a laptop computer in seattle. Can you help me find the owner. It is an averatec with window vista.
Anonymous said on August 7, 2009
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 said on October 13, 2009
Oh yeah! Thanks man. You saved my bacon.
Andy said on January 17, 2010
Thanks a lot Man :) you saved my 40 $….
Anonymous said on January 29, 2010
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 said on October 7, 2010
Hello please help. I lost my activation key and dont know where to look for i so i can register.
Pawan Singh said on October 22, 2010
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
Inks123 said on November 11, 2010
can I trick my external hd into thinking that it is connected with my old system?
eg Alpine HDA5460
Rick_yess said on January 13, 2011
can get all your prduct keys from a program called WinTools it had everything including deleting passwords
Alem_f said on January 26, 2011
MOLIM CD KEY
Mjsoller said on March 11, 2011
This did not work because my product key requires 25 digits
singAsong4DAchildren said on April 6, 2011
only from january first to new years eve
Ihatemac said on August 8, 2011
That’s the Product ID not the Product Key