How To Get Windows 7 Product Key From Dell Service Tag

If you have a Dell computer running Windows 7, you might need the Windows product key for various reasons, such as reinstalling the operating system or upgrading to Windows 10. The product key is usually located on the Certificate of Authenticity (COA) sticker attached to the computer. However, if the sticker is damaged or missing, you can still retrieve the product key using the Dell Service Tag.

Step 1: Locate your Dell Service Tag

The Dell Service Tag is a 7-character code found on a sticker on your computer, usually on the bottom or side of the laptop, or on the back or bottom of a desktop. The sticker may also include a barcode and a QR code. Make a note of the service tag as you will need it in the next steps.

Step 2: Use the Dell Service Tag to find the product key

Follow these steps to use the Dell Service Tag to find your Windows 7 product key:

  1. Open a web browser and go to the Dell Warranty Support page.
  2. Enter your Dell Service Tag in the “Enter a Service Tag or Express Service Code” field and click on the search icon or press Enter.
  3. You will be redirected to a page with details about your computer’s warranty and support. On this page, click on the “Original Configuration” tab.
  4. Under the “Original Configuration” tab, look for “Microsoft Windows 7” followed by the edition (e.g., Home Premium, Professional, Ultimate). You should see the product key listed next to it. Note down the product key for future reference.

If you are unable to find the product key using the above method, you can try using third-party software to retrieve the key from your computer’s registry. One such tool is the ProduKey utility by NirSoft. You can download it from their website. Follow their instructions to run the utility and retrieve your product key.

Step 3: Activate Windows 7 with the product key

Once you have retrieved the product key, you can use it to activate your copy of Windows 7. To do this, follow these steps:

  1. Click on the Start button and right-click on “Computer”.
  2. Select “Properties” from the context menu.
  3. Scroll down to the “Windows activation” section and click on “Change product key”.
  4. Enter the product key you retrieved in Step 2 and click on “Next”.
  5. Follow the on-screen instructions to complete the activation process.

If you encounter any issues during the activation process, you may need to contact Microsoft support for assistance.


In this blog post, we have discussed how to retrieve the Windows 7 product key from the Dell Service Tag. By following the steps provided, you should be able to find the product key and activate your copy of Windows 7. If you still experience difficulties, consider seeking help from Microsoft support or a professional computer technician.