Finding the service tag number in Dell laptops is the elementary task to get warranty or service. The same is applicable for other brands, as well. The service tag number in Dell, or the serial number, is the method for uniquely identifying a laptop, notebook, or any other device. You can always have Dell service tag lookup, or the serial number lookup, by visiting the OEM’s website. But the method they show, involve downloading and installing of numerous programs. There isn’t any doubt, the programs are lightweight, but why install a separate app, when you can get the serial number without them.

You can have the Dell laptop serial number, without downloading any dell service tag checker. You just need to type a command and get the serial number right in front of you. Though the easier method is to have a look at the sticker just underneath your system. You can get the service tag number, express service code, or any such details there. But with an old laptop, it might be difficult to maintain the sticker at its place. So, now I will be showing you the easiest tutorial here to find Dell service tag or serial number on Windows and Linux.

Finding Dell service tag or serial number On Windows

How to change bios serial number dell laptopsDell
  • The BIOS is a set of built-in options that allows you to change system aspects like the data and time. Since the BIOS is tied to a computer's motherboard, the appearance of each computer's BIOS will vary slightly depending on the manufacturer.
  • You can access BIOS from cmd by: Click on the 'Start' menu and select 'Run.' Type 'D:/wmic bios get /format:list' to bring up a list of the BIOS settings. And it can be edited in the same way as at start-up.
  • Press 'F1,' 'F2,' 'F12' or 'Del' to enter setup mode. Your BIOS serial number should be changed. Note that you'll also lose data on additional drives to connect on startup, any custom BIOS settings, BIOS passwords as well as time and date. Change all the necessary settings, save your changes and reboot.

Create a batch file to change computer name (not on domain): use wmic bios get serialnumber and assign the value to the variable compname, then display the value of this variable; change computer name to the value of the variable compname; So for 1.: FOR /F%%F IN ('wmic bios get serialnumber') DO ( SET compname=%%F ) ECHO%compname.

How To Change Bios Serial Number Dell

Open Command Prompt. Hit the ‘Windows + R’, type ‘cmd’, and press the enter key.

Just type ‘wmic bios get serial number’, and hit the enter key. Now the service tag for your laptop will be in front of you.

Finding Dell service tag or serial number on Linux

How to change bios serial number dell laptop

How To Change Bios Serial Number Dell Computer

Most users run Linux on their Dell laptop. It isn’t again a difficult task to find the service tag number for Dell and other laptops on Linux, as well. You might need superuser or administrator privileges for this command though.

How To Change Bios Serial Number

Open ‘Terminal’, and type ‘sudo dmidecode -s system-serial-number’, and hit the enter key. You might be asked to type your password. Once you are done, the Dell service tag number will be shown to you.

How To Change Bios Serial Number Dell

After the Dell service tag number lookup, you can give it to the customer care executive or see the system specs, along with your warranty.

Hope the Dell service tag lookup tool or method, was helpful for you. Faced any issues? Let me know about it in the comment section down below.