What's a Windows 10 Product Key?

A Windows product key, also known as a license, is a unique 25-digit code used to activate your installation of Windows. In the past, you could find this sticker on the side of a desktop PC or stuck to the bottom of a laptop. However, with the introduction of Windows 8.1 and later versions, including Windows 10, Microsoft stopped providing stickers and certificates with printed product keys.

If you're having trouble finding your Windows 10 product key, don't worry – we've got you covered! In this quick tutorial, we'll show you several ways to find the product key on modern Windows machines. Whether you need it for reinstalling Windows or for OS downgrade/upgrade projects, follow our walkthrough below.

One way to find your Windows 10 product key is through the Command Prompt (Cmd). Here's how:

1. Press the Windows key and R keys simultaneously to open the Run dialog box.

2. Type 'cmd' in the dialogue box and press Enter.

Alternatively, you can search for the Windows 10 product key in RegEdit or download a freeware app that will spit out your key.

If you have an activated copy of Windows 10 on your PC and want to find the product key, here's what you do:

1. Press the Windows key and R keys simultaneously to open the Run dialog box.

2. Type 'cmd' in the dialogue box and press Enter.

3. In the Command Prompt window, type 'slmgr.vbs -dli' (without quotes) and press Enter.

The product key will be displayed on the screen. If you're having trouble finding it, feel free to ask for help – we'll provide a short guide and link to alternative processes in our FAQ section at the bottom of this article.

Remember that since Windows 10 is activated through a digital licence tied to your system's hardware fingerprint, there is no need to hunt around for and type in a 25-digit alphanumeric product key when reinstalling Windows from scratch. However, you might still need your product key for certain OS downgrade/upgrade projects.

In conclusion, finding your Windows 10 product key may require a bit of command prompt typing, but it's quite quick and easy if you follow our walkthrough above.

Product key microsoft