Windows with VNC/RDP
If you can login to the computer over VNC or RDP, you can use wmic to find the service tag:
start > run > cmd
On the command line, enter:
wmic bios get serialnumber
Windows without VNC/RDP
If you cannot login to the computer over VNC or RDP, you can still use wmic to find the service tag:
start > run > cmd
On the command line, enter:
wmic /node:computer-name-here bios get serialnumber
You may need to use /user:yourusername and /password:yourpassword to get access to the remote computer. Running wmic /? gives a pretty good manual on what wmic can do.
Other uses of wmic
wmic is a very useful tool for a lot of stuff. For instance wmic csproduct can tell you exactly what model the computer is and wmic nic list shows useful information about your network.
Linux
Under Linux, you can run dmidecode -s system-serial-number to get the serial number. This can be done locally or over ssh.
© GeekLabInfo Find the Dell Service Tag Remotely is a post from GeekLab.info. You are free to copy materials from GeekLab.info, but you are required to link back to http://www.geeklab.info