Find Serial Number On Laptop

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A serial number allows the manufacturer to identify a product and get additional information about it, for replacement, or as a means of finding compatible parts. This tutorial will show you how to find the serial number of your Windows 7, Windows 8, or Windows 10 PC. The serial number in a laptop is printed at the back of the laptop. Turn over your laptop with its back facing you. There you can see some information written all over. Near the battery or the fan exhaust of the laptop, you will find a half white, half black color tag near the middle of the laptop.

Microsoft Surface's serial number is a unique identifier that distinguishes your device from all of the others. When you are registering your product or requesting warranty service, it needs your serial number. By default, the serial number was printed on the back of your tablet. If you have trouble finding your Surface Serial Number, there are several other places you might find the Surface Serial Number.

Find Serial Number On Laptop Lenovo

3 ways to find Surface Serial Number:

Way 1: Find your serial number on Surface apps

It is the easiest way to find your Surface Serial Number, here's how:

Open the app by typing Surface in the search box on the taskbar. Your serial number is listed under Your Surface.

Way 2: Find the serial number on the packaging

If you still have the original packaging for your Surface, you can find the serial number on the barcode label.

Way 3: Find the serial number on UEFI

When you can't sign in to your Surface because forgot or lost its login password, use these steps below, you can find serial number as quickly as possible.

Step 1: Access to UEFI settings.

Option 1: Access to UEFI settings from Sign-in Screen when locked.

Shut down your Surface. Press and hold the volume-up button, at the same time, press and release the power button. When you see the Surface or Windows logo appears, release the volume-up button. The UEFI menu will display within a few seconds.

Option 2: Get to UEFI settings from Advance settings when accessible.

1. Go to Start, select Settings > Update & security > Recovery. Under Advanced startup, select Restart Now.

2. On the Choose an option screen, select Troubleshoot > Advanced Options > UEFI Firmware Settings.

Then click Restart, the UEFI menu will display.

Step 2: In the PC information section, you can see serial number about your Surface.

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While checking the warranty status or seeking support for your Dell laptop, you may encounter pages on the Dell support website that request the serial number of the computer. Depending on the computer, the Dell website may also refer to the serial number as the 'service tag' or 'express service code.' The unique serial number that identifies your Dell laptop is hard-coded in the main system board and printed on a label affixed to the bottom of the computer.

Step 1

Examine the bottom of the laptop for a sticker with a bar code, and the words 'Service Tag' or 'Express Service Code.' The serial number consists of five or seven letters and numbers. If your Dell laptop no longer has the serial number affixed to the bottom, continue to Step 2.

Step 2

Open Internet Explorer and navigate to the Dell System Profiler webpage (see Resources). This webpage only works with Internet Explorer 5.5 and later.

Find Serial Number On Laptop

Step 3

Review the privacy statement displayed regarding the information the Dell System Profiler collects about your computer, and then click 'Yes, I do agree.'

Step 4

Confirm the bar at the top of the Internet Explorer window contains the words 'DellSystemLite from Dell Inc.' Click the bar, and then click 'Install this add-on.'

Click the 'Install' button in the security notification window that appears. The webpage refreshes and displays the Service Tag and Express Service Code for your Dell laptop.


  • The Express Service Code and Service Tag for your Dell laptop are the same serial number; the Express Service Code contains numerals only, for entry using a telephone keypad. If you need the serial number of your Dell laptop for the Dell support website, you can enter either number.

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