When ever you set up a new PC, it is always good to update the software.  After all, it has been several months since the PC was built.  So, I went out to the manufacturers website to  download the latest software updates.

The first thing that they asked me for was the model number of the machine.  No problem, I am sure the number is on the outside of the box.  But, I looked.  No number.  Next, I checked the outside of the PC.  It revealed many numbers, but not the ones that I needed.

Eventually, I checked the receipt.  I found the number and entered it.  Success!!