how to find dell service tag command line
Using Command Prompt. 1  Navigate to the Command Prompt Window in your computer. 2  For a tablet, on the Windows Tile Screen, swipe from bottom and click All Apps. 3  Scroll to the right till you get to Command Prompt.4  On the Command Prompt window, type wmic bios get serialnumber.sing Command Prompt. 1  Navigate to the Command Prompt Window in your computer. 2  On the Command Prompt window, type wmic bios get serialnumber. 3  Hit enter. 4  Service Tag would be displayed. 5  Refer to the image below: