A few days ago I found a really nice tip about how to find your serial number and model of your computer without too much hassle. Some desktops and laptops of the most popular brands come with a serial number. This information comes in handywhenever you are about to get technical support, or wanting to register your product online, just to mention a few cases.
Here is how you can find the Model and Serial Number, you just need to follow this steps:
1) Go to Start -> Run -> cmd
2) Once you are in the command line, enter wmic bios get serialnumber this will return the serial number of your computer.
3) And if you enter wmic csproduct get name, this will return the Model Name of your computer.
As you can see, this works well in computers with a popular name like DELL, HP, IBM, etc. Pretty easy, huh?