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Top 10 Totally Free Windows 10 Product Key Finder

author_icon Adams Johnson time_icon Last updated: Sep 14, 2021 12:00 am tips_icon Windows 10

The Windows product key is very essential for you to enjoy the use of your Windows operating system. While the product key is usually located on a pretty obvious place - the original cover of the operating system disc or purchase confirmation email, losing the product key is a common occurrence and has been reported by many Windows users.

Loss of the product key means that you'll miss out on various Windows updates and premium products. Fortunately, there are many programs that can aid you in getting back your product key. Below are some of the top Windows 10 product key finder tools you can try.

1. BelarcAdvisor

Belarc Advisor is a great Windows 10 product key finder. This tool is easy to use and is free on download. The product key extraction process is fast and it yields its results in such a short time. The tool is also lightweight and consumes minimal space on your computer.

belarc advisor


  • It is free on download.

  • It can also locate Ms Office keys.

  • Apart from Windows 10, it is also compatible with the newer Windows versions.

  • It is a lightweight program hence consumes minimal space on your computer.

  • Displays extensive information about your operating system.


  • It cannot be used remotely, you need to download it.

2. Magical Jellybean Keyfinder

Magical Jellybean keyfinder is an efficient product key sourcing tool that retrieves your lost product key from your registry. It can also retrieve the product keys of other applications same to the keys of unbootable Windows installations.

Magical Jellybean keyfinder is also free on download and very easy to install and run in addition to being a lightweight program.

magic jellybean keyfinder


  • An easy to use program.

  • Lightweight program hence it does not consume much storage space.

  • Free on download.

  • Can retrieve the product key of other programs.


  • Some antivirus programs may identify it as malware.

3. Winkeyfinder

Winkeyfinder is a nice product key retriever that can find your lost Windows, office and.Net product keys. It is can find various versions of Windows' product keys making it a very efficient tool.



  • Low storage capacity program.

  • It is free on download.

  • Easy to install and use.

  • It is fast and the results are instantaneous.

  • Can work as a portable program hence you need not download it.

  • Allows you to change product keys.


  • Does not support Windows 2016.

4. Product Key Finder

The Product Key Finder is a free retrieval tool that is also lightweight in storage space. It is compatible with various operating systems as well as having the ability to store the product key as text.

product key finder


  • It is free.

  • Compatible with various Windows operating systems.

  • Easy to install and use.

  • Lightweight in storage space.


  • Does not retrieve the product key for newer Windows versions

  • Prone to hanging hence slowing its retrieval process.

5. Produkey

Produkey is a remote Windows 10 product key finder tool that can find Windows 10 product key without having to download the program. It retrieves the keys for both Windows 10 and other Microsoft programs and is noted for its fast finding speed.

It is also free on download hence it costs nothing to use its services.



  • Free on download.

  • Can be used remotely hence does not require a download.

  • Produkey can show keys from registry files.

  • Allows you to copy the retrieved keys.


  • It can prove to be hard to use for novice users.

6. WinGuggle

If you want a quick product key finder for Windows 10 then WinGuggle is the best program to use. It is an automatic retrieval tool that also supports OEM editing. The tool also supports older Microsoft versions.



  • It is fast in its retrieval process.

  • It can work remotely and does not need a download.

  • WinGuggle is freeware.

  • Supports older Microsoft versions.

  • You can copy the product key form the program


  • The program does not work with non-Microsoft programs.

7. LicenseCrawler

LicenseCrawler is a convenient and easy to use Windows 10 product key finder program. It works perfectly with older models and can also locate lost product keys for Ms Office. It can also find the product keys for non-Microsoft programs as well as being very easy to use.

The program also allows you to scan a remote computer for the product key.

license crawler


  • Can retrieve keys for non-Microsoft programs.

  • It can scan remote computers for the product key.

  • It is a portable program hence does not need an install.

  • Can find the product key for both older and newer Windows versions.


  • It lists the product keys for some unnecessary or unwanted programs.

8. RockXP

RockXP is another convenient retrieval program for your lost Windows 10 product key that can also locate the keys for other programs. It is a portable location that allows for remote retrieval.



  • Can locate the keys of older Microsoft programs.

  • It is free software.

  • It is portable hence requires no download.


  • Your antivirus can identify the program as malware.

9. SterJo Key Finder

SterJo is a convenient key finder that apart from Windows 10, it can acquire the product key for other different applications. SterJo is also free for use and easy to operate.

sterjo key finder


  • Easy to use.

  • Compatible with older Windows versions.

  • Allows you to sift through the retrieval results.


  • At times it can bring about multiple product keys to one operating system.

10. MSKeyViewer Plus

MSKeyViewer Plus is a great retrieval program that does not need to be installed for it to operate. Furthermore, it is a freeware meaning you do not need to spend a dime in purchases in order to benefit from its services.

mskey viewer plus


  • It is a free program

  • Can get the product key of Ms Word among other Microsoft products.

  • Includes more information on the software.

  • Retrieved keys can be copied.


  • Lack of updates in such a long time.


Losing your Windows 10 product key should not worry you at all as there are a variety of product key finders available. Those tools are all free of charge and you can easily acquire them from their official websites. Besides, most of them are either lightweight or portable programs that do not take much storage space, making it really convenient to use them. If you have any other issues like forgetting your Windows login password, please free feel to let us know.


By Adams Johnson to Windows 10

Posted on Sep 14, 2021 ( Updated: Sep 14, 2021)

Passper editor since 2015, has over 20 years’ professional technology support experience. He has contributed nearly 100 articles to the site on topics that ranger from password unlocking for MS office/Windows, Windows tips to network security.