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I am trying to find the serial number of a windows server 2003 R2.

I used a lot of tools but i couldn't find the serial number.

Note that i want the serial number and not the product key.

I also used the following command on cmd:

wmic bios get serialnumber

but the result is

serial number 

and then empty lines, which is unexpected from my experience. How can i find the serial number? What is wrong?

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The serial number might not actually be stored in a machine readable format. While the functionality is often provided many systems end up with empty fields or with insert serial number here in the field rather than an actual value. – Hennes Sep 3 '13 at 12:50
up vote 2 down vote accepted

It's not always set, and there are a few different places it can be set. You could also use the hard disk serial # or the MAC address to help identify your machine.

A tool like Belarc Advisor will display all these and more.

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Belarc Advisor is the only program I have found that is able to display the actual serial number of Windows and other programs. Other programs I have tested have not displayed the actual serial, despite their claim otherwise, the numbers they do display were actually invalid. – Ramhound Sep 3 '13 at 14:58

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