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Free Image Format ConversionHow to find the product key of installed programs? Where can I find my Windows product key for free? If you're looking for an easy way to check and find the product keys of software installed on your Windows computer, stay right here.
Below are the 7 best product key finders you'll find in 2024 that you can use to successfully check the serial numbers, activation codes, and license keys of your Windows 11/10/8/7 and earlier, software, apps, and even games.
【2024】Top 7 Product Key Finders - For Windows and Software [Paid, Free]
Here are the 7 best product key finder software tools we've selected after comparing various options in 2024. You can choose any of these to find the keys for your Windows or installed software: 1. Serial Key Finder 2. Product Key Recovery 3. Magic Key Finder 4. SoftKey Revealer 5. KeyFinder 6. Product Key Viewer 7. Aladdin Key Scanner (Arlo Key Scanner) Select the software that suits your needs and follow its instructions to locate your Windows or software keys.
"Editor's Recommendation Tool"
- For the simplest Windows and software product key finder, look no further than Key Finder.
- If you need a free Windows product key finder, FreePCAudit is a reliable choice.
- If you want to find your Windows key without software, PowerShell commands should do the trick.
No.1 Product Key Finder - One Click Product Key Finder
"Best Product Key Finder Tools for 2024"
The utility Key Finder, referred to as a Windows Product Key Finder software, actually features prominently in locating the product keys of Windows operating systems and installed software.
It can be used by any level of Windows user to successfully find product keys, serial numbers, or license codes.
Advantages:
- No ads or viruses.
- One-click product key finder.
- Supports finding keys on Windows 11, 10, 8, 7, and Windows Vista/XP.
- Supports retrieving product keys for installed software like Adobe, Office, etc.
- Supports retrieving saved usernames and passwords from browsers such as Chrome, IE, Edge, Firefox, etc.
The downside: some features are locked until you activate it.
How to use:
Step 1: Click the “Windows” option under the registry key.
Step 2. On the right, you'll see your Windows product key. Click on "Copy" to paste it somewhere. Alternatively, choose one of the other two options:
"Save" – saves as a PDF file on your local device.
"Print" - Click to print important documents.
Second Place: Belarc Advisor
Best Hardware and Software Information Detector
Unlike tools such as KeyFinder, Belarc Advisor is not designed specifically to find product keys; instead, it's an inventory tool that gathers information about your operating system, including hardware, security updates, and product keys. When you run Belarc Advisor, it automatically checks a database to find your software keys.
Download: https://www.belarc.com/products_belarc_advisor
Advantages:
- Scans and looks up information about software, including browsers.
Supports Windows 7, Windows Vista, and Windows XP.
Includes lots of other information, like antivirus programs and detailed hardware info.
Disadvantages:
- Does not support the latest Windows operating systems, including Windows 11/10/8.1/8.
- Requires email registration.
- Has a complicated interface.
How to use:
Step 1: Install and run Belarc Advisor.
Step 2: Click on Software Authorization.
Step 3: Wait for the program to scan and find your product keys.
Third Place: Abelssoft MyKeyFinder
It's not just a Windows product key finder.
Abelssoft MyKeyFinder is more of a password finder than just a product key finder. It can locate your Windows product key as well as passwords for external hard disks and even your WiFi. Found product keys can be searched and filtered.
Download: https://www.abelssoft.de/en/windows/helpers/mykeyfinder
Advantages:
- Find your Windows product key.
- Find external hard drive, WiFi passwords.
- Support search and filter product keys.
Disadvantages:
- The price is a bit high.
- You have to sign up via e-mail.
How to use:
Step 1: Run MyKeyFinder, which will automatically scan your computer for Windows and software product keys.
Step 2: When done, MyKeyFinder will list all the software product keys it found on your computer.
Step 3: Click on the program you want and check the keys that were found.
(This image demonstrates an example of finding a product key using MyKeyFinder.)
Section 4: LicenseCrawler
Recover lost keys for Windows and other software.
LicenseCrawler boasts advanced features when it comes to scanning and finding product keys for Windows and other software. However, according to some user feedback, the key search process can take quite a while to complete.
Download: https://www.klinzmann.name/licensecrawler.htm
Advantages:
- No installation required.
- Supports dozens of apps.
Cons: Scans for product keys at a slower pace.
How to use:
Step 1: Run License Crawler, and select the computer as the “Local Host.” Click Start Search, and then choose High Speed Scan.
Step 2: View the results. You can choose "File" > "Save" to save the results to your computer.
Section 5: FreePCAudit - Free
Best Free Windows Product Key Finders
FreePCAudit is another product key finder that doesn't require installation. It can run directly from an .exe file, starting the search for your product keys on your Windows computer.
Download link: https://www.misutilities.com/free-pc-audit/index.html
Advantages:
- Recover keys for all Windows operating systems, from NT to Windows 10.
- List installed software and running system processes.
Cons: Cannot search for keys of Microsoft Office or other software.
How to use:
Step 1: Launch Free PC Audit.
Step 2: Click on "System" > Click on "Windows Product Key".
Step 3: Locate the product key for your current operating system.
Find the product key via Free PC Audit: 
Sixth: PowerShell commands – Free
Best Built-in Windows Product Key Finders
If you don't want to install a product key finder app to retrieve the product key of an installed Windows OS, the PowerShell command is an ideal tool you can turn to.
Download: Built into Windows; no installation required.
Advantages:
- Supports retrieving product keys for all versions of Windows operating systems, including Windows 11/10/8/7, and so on.
Drawback:
- Product keys can't be found on older versions of Windows, such as Windows Vista or XP.
- Keys for software that's already installed aren't supported.
How to use:
Step 1: Right-click the Windows icon in the Start menu, and select “Windows PowerShell.”
Step 2. Enter the command line in Windows PowerShell:
Retrieves a WMI object, queries all properties of SoftwareLicensingService, and returns the OA3xOriginalProductKey.
Step 3: Wait for Windows PowerShell to display the built-in license key of your current Windows operating system.
7th: CMD – Free
"Free Product Key Finder for Older Versions of Windows (UTF-8)"
CMD, similar to PowerShell, is a built-in utility in Windows primarily used to address disk issues via command line. It can also be utilized, with the correct command line, to find the product key of an installed Windows operating system.
Download: No installation required; it comes pre-installed with Windows.
Pros: It supports retrieval of keys for older Windows OS versions, such as Windows 7, Windows XP, and Vista.
Downside: Easy to accidentally break.
How to use:
Step 1: Type cmd in the search box, right-click on Command Prompt, and select Run as administrator.
Step 2. Type the command in the CMD window and press Enter:
Using the WMIC command to retrieve the OA3xOriginalProductKey from the Software Licensing Service
Step 3: Wait for the prompt, and then find your product key on your PC.
Finding your Windows and software keys is crucial – let the best product key finder tools help
As you know, the product key of the operating system in use or the installed program is very important, you must find the product key and keep it safely for future use.
If you don't know or have no idea where to find the product keys of Windows and programs on your computer, don't worry. On this page, we've listed 7 best product key finders with detailed guides for you. Just choose a product key finder tool like KeyFinder and let the tool help you find them out right now.