How To Find MAC Address On Your Windows Computer

What is a MAC address? MAC address stands for “media access control” address. It’s a unique identifier assigned to network interfaces. Unlike an IP address that can easily be changed, a MAC address is normally assigned by the network interface manufacturer and is used for communications on the physical network segment. It’s also known as the Physical Address.

On a Microsoft Windows machine, pull up the command prompt. On a Windows 7 machine, click on the Windows start icon, go to All Programs, then to Accessories. There you will find Command Prompt.

Once the command prompt opens, type in the following and press Enter.

ipcofig /all

You will receive something similar to this:




Your MAC or Physical Address looks like this:



On other devices such as mobile phones, iPads, and Kindles, the IP Address may appear in a similar format such as this:


There are many reasons why you might need to know your MAC address or at least know how to find it. I’ll cover a couple of those reasons in another post.

Open Command Prompt As An Administrator In Windows

This post describes how to open a command prompt with full administrator permissions in the following Windows Operating Sytems:

Windows 7, Windows Essential Business Server, Windows SBS 2003, Windows SBS 2008, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2, Windows Server 2008, Windows Server 2008 R2, Windows Vista


To open a command prompt as an administrator,

1. Click Start, click All Programs, and then click Accessories.
2. Right-click Command prompt, and then click Run as administrator.

If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.


How To Get Computer Serial Number Using CMD Line in Linux

Use dmidecode command. If it’s not on the system, install it first.

yum install dmidecode

Now that it’s installed, run it.

dmidecode -t system

Output Example

SMBIOS 2.3 present.

Handle 0x0100, DMI type 1, 25 bytes.
System Information
Manufacturer: HP
Product Name: ProLiant DL380 G4
Version: Not Specified
Serial Number: XXXXXXXXXXX
Wake-up Type: Power Switch

Handle 0x2000, DMI type 32, 11 bytes.
System Boot Information
Status: No errors detected

Variations to use instead of "system":