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...
Part 1 of 3:

Using Command Prompt

  1. How to Check Your Windows Product Key Picture 1How to Check Your Windows Product Key Picture 1
    Open Start
    How to Check Your Windows Product Key Picture 2How to Check Your Windows Product Key Picture 2
    . Click the Windows logo in the bottom-left corner of the screen.
  2. How to Check Your Windows Product Key Picture 3How to Check Your Windows Product Key Picture 3
    Type command prompt into Start. This will search the computer for the Command Prompt app.
  3. How to Check Your Windows Product Key Picture 4How to Check Your Windows Product Key Picture 4
    Click
    How to Check Your Windows Product Key Picture 5How to Check Your Windows Product Key Picture 5
    Command Prompt. It's a black box at the top of the Start window. Command Prompt will open.
    1. You must be on an administrator account in order to retrieve your key in this way.
  4. How to Check Your Windows Product Key Picture 6How to Check Your Windows Product Key Picture 6
    Enter the product key retrieval code. Type wmic path softwarelicensingservice get OA3xOriginalProductKey into Command Prompt, then press Enter.
  5. How to Check Your Windows Product Key Picture 7How to Check Your Windows Product Key Picture 7
    Note your product key. You should see the 25-character product key appear directly below the command that you entered; this is your product key.
    1. Take a screenshot of the results or write down the key to make sure that you have access to it if needed.
    2. If this command doesn't work, you'll need to use ProduKey to find your Windows product key.
Part 2 of 3:

Using ProduKey

  1. How to Check Your Windows Product Key Picture 8How to Check Your Windows Product Key Picture 8
    Open the ProduKey website. Go to http://www.nirsoft.net/utils/product_cd_key_viewer.html on a working computer.
  2. How to Check Your Windows Product Key Picture 9How to Check Your Windows Product Key Picture 9
    Scroll down and click Download ProduKey (In Zip file). It's near the bottom of the page. Doing so will prompt the ProduKey setup folder to download onto your computer.
  3. How to Check Your Windows Product Key Picture 10How to Check Your Windows Product Key Picture 10
    Open the ProduKey folder. Double-click the ProduKey ZIP folder in your computer's default downloads folder (e.g., the desktop).
  4. How to Check Your Windows Product Key Picture 11How to Check Your Windows Product Key Picture 11
    Click the Extract tab. It's at the top of the window. A toolbar will appear below Extract.
  5. How to Check Your Windows Product Key Picture 12How to Check Your Windows Product Key Picture 12
    Click Extract all. This option is on the far-right side of the toolbar. Clicking it prompts a window to pop up.
  6. How to Check Your Windows Product Key Picture 13How to Check Your Windows Product Key Picture 13
    Click Extract when prompted. It's at the bottom of the window. Doing so will decompress the ProduKey folder and open it for you.
  7. How to Check Your Windows Product Key Picture 14How to Check Your Windows Product Key Picture 14
    Double-click the ProduKey application. 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.
    1. You can take a screenshot of the key or write it down to make sure you have access to it later.
Part 3 of 3:

Retrieving a Crashed Computer's Key

  1. How to Check Your Windows Product Key Picture 15How to Check Your Windows Product Key Picture 15
    Attach the crashed computer's hard drive to a working computer. 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.
    1. 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.
  2. How to Check Your Windows Product Key Picture 16How to Check Your Windows Product Key Picture 16
    Open ProduKey. You should have downloaded ProduKey already, but if not, do so before continuing.
  3. How to Check Your Windows Product Key Picture 17How to Check Your Windows Product Key Picture 17
    Click File. This is in the top-left corner of the ProduKey window. A drop-down menu will appear.
  4. How to Check Your Windows Product Key Picture 18How to Check Your Windows Product Key Picture 18
    Click Select Source. It's at the top of the drop-down menu. Clicking this prompts a new window to open.
  5. How to Check Your Windows Product Key Picture 19How to Check Your Windows Product Key Picture 19
    Check the "Load the product keys from external Windows directory" box. This option is near the top of the window.
  6. How to Check Your Windows Product Key Picture 20How to Check Your Windows Product Key Picture 20
    Click Browse…. It's to the right of the text field.
  7. How to Check Your Windows Product Key Picture 21How to Check Your Windows Product Key Picture 21
    Select the attached hard drive. Find the attached hard drive in the list, then click it.
    1. You may first have to expand the "Computer" option at the top of the list.
  8. How to Check Your Windows Product Key Picture 22How to Check Your Windows Product Key Picture 22
    Click OK. It's at the bottom of the Browse window. Doing so closes the window.
  9. How to Check Your Windows Product Key Picture 23How to Check Your Windows Product Key Picture 23
    Click OK. This option is at the bottom of the Source window.
  10. How to Check Your Windows Product Key Picture 24How to Check Your Windows Product Key Picture 24
    Note your product key. 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.
    1. You can take a screenshot of the key or write it down to make sure you have access to it later.
4.5 ★ | 2 Vote