Rate this post

Updated: 02/02/2019 by Hope for the computer

Alternatively referred to as a activation code, CD key, Product ID, Register keyY serial key, a product key It is a group of numbers and letters that helps prevent software piracy. Software that requires a product key can not be installed on a computer until a valid number is entered.


You should not refer to a product key as a serial number to avoid confusion with a serial number of hardware or computer products.

Microsoft Windows XP product key

Above is an example of the Microsoft Windows XP Home Edition product key. It is usually found on the side or bottom of an OEM desktop computer. On an OEM laptop, it can be located on the bottom of the laptop, or under the laptop's battery. In this example, the last four sets of letters and numbers have been hidden to protect the unique key. After installing Windows on a computer, it will ask for a Activation key To verify that your computer has a legitimate copy of Windows. The following are the formats of the Microsoft Windows product keys.

Windows 7, Server 2008, Vista, Server 2003, XP, 2000, ME and 98

Product key: xxxxx-xxxxx-xxxxx-xxxxx-xxxxx

Windows 95 and NT

Product key: xxxxx-xxx-xxxxxxx-xxxxx

Where do I find the CD key, the product key or the unique number?

Microsoft Windows product key

For computers, if you have an OEM PC (for example, Dell or Hewlett-Packard), the Windows product key is on the side or bottom of the computer.

Windows 10 update users

If you have installed the free Windows 10 update, the unique key is associated with your Microsoft account and can be reactivated after reinstalling Windows 10.

Software product keys

If you search for your CD key or product key for a program or game, you can find it in the CD case, in the jeweler's case or in any printed documentation included with the disc.

Activate, COA, Code, Keygen, PID, Security terms, WPA