How to Check Your Windows Product Key


This wikiHow teaches you how to find a Windows activation key on your computer. You can use your computer's Command Prompt application to find the key, or you can use the free ProduKey application to locate it. You can also use ProduKey to pull the product key off of a crashed computer's hard drive. If you upgraded to Windows 10 during the free period, you don't have a product key, though you do have a digital license that you can access by signing into your Microsoft Account on a new computer.

Part 1
Using Command Prompt

Using Command Prompt on How to Check Your Windows Product Key

1
Click the Windows logo in the bottom-left corner of the screen.

Using Command Prompt on How to Check Your Windows Product Key

2
This will search the computer for the Command Prompt app.

Using Command Prompt on How to Check Your Windows Product Key

3
It's a black box at the top of the Start window. Command Prompt will open. You must be on an administrator account in order to retrieve your key in this way.

Using Command Prompt on How to Check Your Windows Product Key

4
Type wmic path softwarelicensingservice get OA3xOriginalProductKey into Command Prompt, then press ↵ Enter.

Using Command Prompt on How to Check Your Windows Product Key

5
You should see the 25-character product key appear directly below the command that you entered; this is your product key. Take a screenshot of the results or write down the key to make sure that you have access to it if needed. If this command doesn't work, you'll need to to find your Windows product key.

Part 2
Using ProduKey

Using ProduKey on How to Check Your Windows Product Key

1
Go to on a working computer.

Using ProduKey on How to Check Your Windows Product Key

2
It's near the bottom of the page. Doing so will prompt the ProduKey setup folder to download onto your computer.

Using ProduKey on How to Check Your Windows Product Key

3
Double-click the ProduKey ZIP folder in your computer's default downloads folder (e.g., the desktop).

Using ProduKey on How to Check Your Windows Product Key

4
It's at the top of the window. A toolbar will appear below Extract.

Using ProduKey on How to Check Your Windows Product Key

5
This option is on the far-right side of the toolbar. Clicking it prompts a window to pop up.

Using ProduKey on How to Check Your Windows Product Key

6
It's at the bottom of the window. Doing so will decompress the ProduKey folder and open it for you.

Using ProduKey on How to Check Your Windows Product Key

7
It resembles a key. The ProduKey window will open; you should see your computer's 25-character product key to the right of the hard drive's name. You can take a screenshot of the key or write it down to make sure you have access to it later.

Part 3
Retrieving a Crashed Computer's Key

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

1
You'll need to remove the hard drive from the crashed computer, plug it into an adapter, and then plug the adapter into a working Windows computer. Depending on the hard drive, you'll either need a SATA adapter or an IDE adapter. An IDE drive has a several-inch-wide connector at the end of its connection ribbon, while a SATA drive has a more narrow ribbon and connector.

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

2
You should have already, but if not, do so before continuing.

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

3
This is in the top-left corner of the ProduKey window. A drop-down menu will appear.

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

4
It's at the top of the drop-down menu. Clicking this prompts a new window to open.

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

5
This option is near the top of the window.

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

6
It's to the right of the text field.

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

7
Find the attached hard drive in the list, then click it. You may first have to expand the "Computer" option at the top of the list.

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

8
It's at the bottom of the Browse window. Doing so closes the window.

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

9
This option is at the bottom of the Source window.

Retrieving a Crashed Computer's Key on How to Check Your Windows Product Key

10
You should see a 25-character product key to the right of the hard drive's name; this is the crashed computer's product key. You can take a screenshot of the key or write it down to make sure you have access to it later.