Have you ever needed to reinstall Microsoft Office 2021 on a new computer or fix an activation issue, only to realize you don’t have your product key handy? If you’re wondering how to find the Office 2021 product key on an existing installation, don’t worry—you’re not alone. Fortunately, it’s easier than you might think to recover your product key from your existing Office installation. This guide will walk you through several methods to help you quickly locate that elusive key.
Why You Might Need Your Office 2021 Product Key
Before diving into how to find your product key, let’s first look at why you might need it. Some common reasons include:
- Reinstallation: If you’re moving to a new computer or have reset your existing one, you’ll need your product key to reinstall Office 2021.
- Activation Issues: If Office is not activating properly or showing up as unlicensed, you may need to re-enter the product key to resolve the issue.
- Upgrading: If you want to upgrade to a different edition of Office, such as moving from Home & Student to Professional, you might need your current product key for reference.
Knowing how to find the Office 2021 product key on an existing installation can save you time and prevent frustration when you encounter these situations.
Where Is the Office 2021 Product Key Stored?
The Office 2021 product key is a 25-character code that is required to activate the software. When you purchase Office, the product key is either:
- Provided in the confirmation email if you bought it online.
- Printed on a card inside the retail box if you purchased a physical copy.
- Associated with your Microsoft account if you purchased directly from Microsoft.
But once you’ve activated Office on your computer, the product key is stored in your system, making it retrievable if you lose the original copy.
How to Find Office 2021 Product Key on Existing Installation
There are several ways to retrieve your Office 2021 product key from your computer, depending on the version of Office and how it was activated. Let’s explore the most reliable methods to find the Office 2021 product key on an existing installation.
Method 1: Use a Product Key Finder Tool
One of the easiest ways to locate your Office 2021 product key is by using a third-party product key finder tool. These tools scan your system for software licenses and display the product keys for various installed applications, including Office 2021.
Some popular product key finder tools include:
- Belarc Advisor: This free tool generates a detailed report of your system’s software, including the Office 2021 product key.
- ProduKey by NirSoft: ProduKey is another lightweight tool that quickly scans your system and displays the Office product key.
- Magical Jelly Bean Keyfinder: Another well-known tool for retrieving product keys from Windows computers.
To use these tools:
- Download and install the product key finder tool.
- Run the tool and let it scan your computer for installed software.
- Once the scan is complete, the tool will display your Office 2021 product key, which you can save for future use.
Method 2: Find Office 2021 Product Key in the Registry
If you prefer not to use third-party software, you can manually locate the product key using the Windows Registry. However, keep in mind that the product key in the registry is typically encrypted, so this method might not work for all users.
Here’s how to find the encrypted product key:
- Press Win + R on your keyboard to open the Run dialog box.
- Type regedit and press Enter to open the Windows Registry Editor.
- Navigate to the following path in the registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\16.0\Registration
- In this folder, you should see entries related to your Office installation. Look for a value called DigitalProductID—this contains an encrypted version of your Office 2021 product key.
While this method allows you to view where the key is stored, the key is encrypted and not easily readable. Therefore, using a product key finder tool or one of the following methods may be more efficient.
Method 3: Check Your Microsoft Account
If you purchased Office 2021 directly from Microsoft, your product key is likely tied to your Microsoft account, which simplifies the process of retrieving it. Here’s how to access your key:
- Go to the Microsoft Account website: https://account.microsoft.com.
- Sign in using the same Microsoft account associated with your Office 2021 purchase.
- Navigate to the Services & subscriptions section.
- Scroll through the list to find your Office 2021 product. Next to it, you should see an option to view the product key or manage the installation.
This method is especially useful because once you’ve linked your product key to your Microsoft account, you can always retrieve it from there, even if you lose access to your original product key.
Method 4: Use Command Prompt to Retrieve the Product Key
Another method to find the Office 2021 product key on an existing installation is through the Command Prompt. While this method may seem more technical, it’s straightforward and doesn’t require third-party software.
Here’s how to use the Command Prompt to find your product key:
- Press Win + S and type cmd in the search bar.
- Right-click on Command Prompt and select Run as administrator.
- In the Command Prompt window, type the following command:
wmic path softwarelicensingservice get OA3xOriginalProductKey
- Press Enter, and the product key will be displayed.
This method works for most Office installations, especially if the product was activated using a product key rather than a Microsoft account.
Method 5: Check Email or Retail Packaging
If you can’t retrieve the product key using any of the above methods, you can always go back to the original source of your purchase. Check the email receipt from Microsoft if you bought Office 2021 online, or locate the physical card inside the retail box if you bought a physical copy.
Make sure to store the product key in a safe place for future reference, such as saving it in a password manager or a secure digital document.
Find Office 2021 Product Key on Existing Installation
Whether you’re reinstalling Office, resolving activation issues, or transferring your license to a new computer, knowing how to find your Office 2021 product key on an existing installation can save you a lot of time and hassle. From using a product key finder tool to checking your Microsoft account, these methods will help you recover your key quickly and easily.
Remember, keeping your product key in a safe and accessible place is important for future use. We recommend storing it digitally or writing it down in a secure location. With these expert tips, you’ll never have to worry about losing your Office 2021 product key again!