How to Find Windows 10 Product Key 2026?

Find Windows 10 Product Key 2026

Looking for your Windows 10 product key to activate your installation? Whether you need to reinstall Windows, transfer your license to a new PC, or just want to know your current product key, this guide covers all the methods to find it.

Windows 10 requires a valid product key for full activation. Without it, the OS works as a demo version with limited features that expires after 90 days. For every version of Windows 10, the key is needed at installation time for lifetime activation.

Method 1: Find Product Key Using Command Prompt

The quickest way to find your Windows 10 product key if it came pre-installed on your PC:

Press Windows + R, type cmd and press Enter
Type the following command and press Enter:

wmic path softwareLicensingService get OA3xOriginalProductKey

Your 25-digit product key will be displayed on screen. This method works for OEM keys that are embedded in the BIOS by the manufacturer.

Method 2: Find Product Key Using PowerShell

Right-click the Start button and select Windows PowerShell (Admin)
Type the following command:

(Get-WmiObject -query "select * from SoftwareLicensingService").OA3xOriginalProductKey

This displays the same OEM key as the Command Prompt method but works in PowerShell.

Method 3: Check Your Microsoft Account

If you linked your Windows 10 license to your Microsoft account, you can find it online:

Go to Settings > Update & Security > Activation
If it says "Windows is activated with a digital license linked to your Microsoft account" then your key is stored online
Sign into your Microsoft account at account.microsoft.com
Go to Devices to see your linked Windows installations

Method 4: Use Third-Party Software (ProduKey)

If the above methods do not work, you can use free third-party tools like ProduKey or Belarc Advisor to extract your product key from the Windows Registry:

Download ProduKey from the NirSoft website
Run the application - no installation needed
It will automatically display the product key for Windows and other Microsoft products installed on your PC

Method 5: Check Control Panel

Go to Control Panel > System and Security > System
Look under Windows activation section
It will show whether Windows is activated and sometimes display a partial product key

How to Link Windows 10 Product Key to Microsoft Account

Linking your product key to your Microsoft account makes it easier to transfer the license to a new PC:

Open Settings > Update & Security > Activation and confirm Windows is activated
Look for the Add a Microsoft Account section and click Add an account
Sign in with your Microsoft account
After linking, you will see "Windows is activated with a digital license linked to your Microsoft account"

Now when you install Windows 10 on a new PC, sign in with the same Microsoft account and the license will transfer automatically.

Windows 10 Generic Keys for Installation

These generic keys let you install Windows 10 for testing purposes. They activate a 30-day trial that can be extended to 90 days:

Windows 10 Home: TX9XD-98N7V-6WMQ6-BX7FG-H8Q99
Windows 10 Pro: W269N-WFGWX-YVC9B-4J6C9-T83GX
Windows 10 Enterprise: NPPR9-FWDCX-D2C8J-H872K-2YT43

Note: These are generic installation keys for setup purposes only. You will need a genuine product key for permanent activation.

Windows 10 Product Key FAQ

Q.1 Can I use my Windows 10 product key on a different computer? Ans It depends on the type of license. A Retail product key can be transferred to a different computer - you just need to deactivate it on the old PC first. An OEM product key is tied to the original hardware and cannot be transferred to a new computer. If you bought your PC with Windows pre-installed, it is most likely an OEM key. If you bought Windows separately from a store or Microsoft website, it is a Retail key.

Q.2 What happens if I do not activate Windows 10? Ans Windows 10 will continue to work without activation, but with limitations. You will see a watermark on the bottom right corner of your screen saying Activate Windows. You will not be able to personalize your desktop, change wallpaper, or use certain features. There is no time limit on the unactivated version, but the watermark and restrictions remain until you enter a valid product key.

Q.3 Is there a difference between OEM and Retail Windows 10 product keys? Ans Yes, there is a significant difference. An OEM key comes pre-installed by the computer manufacturer and is permanently tied to that specific hardware. A Retail key is purchased separately and can be transferred between computers. OEM keys are cheaper but non-transferable. Retail keys cost more but offer flexibility to move the license when you upgrade your PC.