Determine Dell Service Tag in Windows

This command will show you the serial number of your CPU of your computer.  

If your computer is a DELL, that is also known as the service tag.

1. Open up a PowerShell window.
   
   
2. Enter this command
   GWMI -Class Win32_Bios | select SerialNumber
   
   
3. Press Enter.

System will return with your Dell Service Tag.

You can then enter that into the Dell site to get further information about the system.

If this tutorial has been of any help to you, I'd love to know! 
If you have suggestions of how to improve it, let me know in the comments!  Thanks!