How to Change the Service Tag on a Dell Laptop

By Mercedes T. Green

i laptop image by Jorge Figueiredo from

When you replace the motherboard on your laptop, you will lose the asset and service tag entries, which are stored in your laptop's bios and in the Dell Utilities. This may not seem like a problem until you have to connect to Dell's online support to resolve an issue with your laptop. If the Dell support staff cannot confirm your service tag numbers, they will be unable to verify your warranty and may refuse to open a support ticket.

Double-click the Utility file. Click the "Setup" button in the "Dell Portables Asset Tag Utility" window.

Press the "Enter" key when prompted to "Press Enter to continue or Ctrl-C to exit." Insert the diskette into the diskette drive on your Dell laptop when prompted. Hit the "Enter" key.

Type the "Y" key and press "Enter" on the keyboard to overwrite the diskette with the Utility.

Hit the "Enter" key to close the command window. Reboot the computer.

Type "asset /s servicenumber" replacing "service number" with the new service tag. Press the "Enter" key.

Press "Y" to confirm the new service tag. Remove the diskette from the drive. Hold the "Ctrl" and "Alt" keys and press the "Delete" key to reboot the laptop. Release all keys.