Your BIOS serial is saved via software, not hardware. Like anything else that's software based, the BIOS serial can be changed. The serial number data, as well as date and time are kept running even when the computer is powered off through a tiny battery called the CMOS battery. By turning off the CMOS battery, you can force the motherboard to lose it's BIOS serial number data and automatically generate a random new number when its rebooted.
- 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% Followed by 2.
- Finding the serial number on a laptop is tricky if you don't know where to look. Laptops generally have several tags containing various codes.
Turn off your computer and disconnect any power cables coming to the computer. Touch your hands on a metallic surface that's grounded to discharge any static electricity on your hands.
We recently replaced a system board in a Dell Latitude E6410. However, the person who typed in the serial number originally made a typo and now the machine reports in our tracking systems with the wrong info. Is there a utility we can can download to change the service tag info in the BIOS?
Unscrew the screws on the exterior of the computer and open the computer case. Look for the motherboard, which holds the CPU. Locate the CMOS battery, which looks like a coin roughly half an inch wide.
Pull up the clip that holds the battery in place. Lift out the battery. If there is no battery clip, use two fingers to pry the battery out. In either case, it should be relatively easy to get the battery out. Do not use excessive force.
Wait 30 seconds to make sure the power to the CMOS is completely drained.
Place the battery back into its socket.
Turn on the computer. 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.
References
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
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 Desktop
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.
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.
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.
How To Change Bios Serial Number Dell
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.