EaseUS Todo PCTrans

Your smart Windows 11 File Transfer moves all data between PCs/drives in 1 click.

  • Automatic programs migration for Windows PCs.
  • Move user accounts and settings.
  • Support transfer Office, Adobe and more software.
  • Rescue Data When Windows 11 Corrupts or Dies.
1 Year Lifetime $55.96

Christmas Sale, huge discount

  Free Download

Support Windows 11/10/8/7

banner image

7 Best Product Key Finders for Windows & Software in 2022 [Paid & Free]

Updated by Tracy King on Dec 02, 2021

How to find product keys for installed programs? Where can I find my Windows product key for free? If you are looking for an easy method to check and find product keys of installed software on Windows PC, stay here. 

In the following, you'll find the 7 best product key finders in 2022 that you can follow to check serial key, activation key, license code for Windows 11/10/8/7 and older Windows, software, application, and even games successfully.

7 Best Product Key Finders in 2022 - For Windows & Software [Paid, Free]

Here is a list of 7 best product key finder software that we compared multiple similar tools in 2022 and you can follow anyone to find Windows or installed software key now:

  1. #1. EaseUS Todo PCTrans
  2. #2. Belarc Advisor
  3. #3. Abelssoft MyKeyFinder
  4. #4. LicenseCrawler
  5. #5. FreePCAudit - Free
  6. #6. PowerShell Command - Free
  7. #7. CMD - Free

EaseUS Editors' Pick:

  • For the easiest Windows and Software product key finder, EaseUS Todo PCTrans deserves your trust.
  • For a free Windows product key finder, FreePCAudit is the one that you can trust.
  • To find Windows key without software, PowerShell Command should help.

No.1 EaseUS Todo PCTrans - 1-Click Product Key Finder

The Best Product Key Finder Product in 2022

EaseUS Todo PCTrans, known as a PC file transfer software, actually, is featured with an outstanding function in finding product keys for Windows OS and installed software. 

Any level of Windows users can directly apply it to find the product key, serial number, or license code successfully.

1 Year Lifetime $55.96

Christmas Sale, huge discount

  Free Download

Support Windows 11/10/8/7


  • Ads-free, virus-free.
  • 1-click to find the product key.
  • Support finding key on Windows 11/10/8/7 and Windows Vista/XP.
  • Support finding product key of installed software like Adobe, Office, etc.
  • Support transferring files, programs, and even games to a new PC or new drive.

Cons: Requires activation for unlocking full features.

How to Use:

Step 1. Launch and run EaseUS Todo PCTrans on the PC, and choose "Product Key" on the left panel.

product key 1

Step 2. Click "Scan", and you can see the product key of Windows, Adobe, and Office. Save the key to the selected location or choose "Copy" for direct use.

product key 2

No.2 Belarc Adviser

Best Hardware and Software Information Checker

Similar to EaseUS Todo PCTrans, Belarc Advisor is not a product key finder but was designed to gather information of the operating system, including hardware, secure update, and product key. When you run Belarc Advisor, it will automatically check the database to find keys for software.

Download: https://www.belarc.com/products_belarc_advisor


  • Scan and find software information, including browser.
  • Support Windows 7, Windows Vista, and Windows XP.
  • Includes a wealth of other information, like details of antivirus, hardware, etc.


  • Doesn't support the latest Windows OS, including Windows 11/10/8.1/8.
  • Email registration is a must.
  • The interface is complex.

How to Use:

Step 1. Install and launch Belarc Advisor.

Step 2. Click "Software Licenses". 

Step 3. Wait for the program to scan and find the product key for you.

Image of belarc advisor

No.3 Abelssoft MyKeyFinder

More than a Windows Product Key Finder.

Abelssoft MyKeyFinder is more like a password finder other than a product key finder. It works to find both of your Windows product keys and passwords for external hard drives and even WiFi. Found product keys are searchable and filterable.

Download: https://www.abelssoft.de/en/windows/helpers/mykeyfinder


  • Find Windows Product key.
  • Find the password of the external hard drive, WiFi.
  • Support searching and filter product key.


  • The price is a bit high. 
  • Email registration is a must.

How to Use:

Step 1. Launch MyKeyFider, it will automatically scan product keys of Windows and software on PC.

Step 2. Once complete, MyKeyFinder will list all found product keys of software on your PC.

Step 3. Click the desired program and check the found key.


No. 4 LicenseCrawler

Find Keys for Windows and other Software.

LicenseCrawler is advanced in scanning and finding product keys for Windows and other software. However, according to some users, it takes a long period to complete the key finding process.

Download: http://www.klinzmann.name/licensecrawler.htm


  • Doesn't require installation.
  • Support dozens of applications.

Cons: Slow in the scanning product key.

How to Use:

Step 1. Run LicenseCrawler and select computer as Localhost. Click "Start Search" and select "High-speed scan".

Run LicenseCrawler

Step 2. View the result. You can go to File > Save to save the result on your computer.

View found license product key

No.5 FreePCAudit - Free

Best Free Windows Product Key Finder

FreePCAudit is another product key finder that doesn't require software installation. It can directly run from a .exe file to start finding the product key on your Windows computer.

Download: https://www.misutilities.com/free-pc-audit/index.html


  • Supports find product keys for all Windows OS, from NT to Windows 10.
  • List information of installed software and running system process.

Cons: Doesn't find keys for Microsoft Office and other software.

How to Use:

Step 1. Launch Free PC Audit.

Step 2. Click "System" > Click "Windows Product Key".

Step 3. View and find the product key of your current operating system.

Find product key via Free PC Audit

No.6 PowerShell Command - Free

Best Built-in Windows Product Key Finder

If you feel reluctant to install a product key finder software to find the software key of your installed Windows operating system, PowerShell Command is an ideal tool that you can turn to.

Download: Built-in Windows, installation is not necessary.


  • Supports finding product keys for all Windows OS, including 11/10/8/7, etc.


  • Doesn't find the product key on an old version of Windows, like Windows Vista, XP.
  • Doesn't support finding a key for installed software.

How to Use:

Step 1. Right-click the Windows icon at the start menu and select "Windows PowerShell".

Open PowerShell

Step 2. Type the command line into Windows PowerShell: 

(Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKey

Type command to find product key in PowerShell

Step 3. Wait for Windows PowerShell to present you with the embedded license key of the current Windows OS on your PC.

No.7 CMD - Free

Free Product Key Finder for Old Windows Systems

CMD command, like PowerShell, is a Windows built-in utility, mainly working on solving disk issues with command lines. It also works to find the product key of the installed Windows operating system with proper command lines.

Download: Installation is not necessary, pre-installed in Windows.

Pros: Supports finding product keys of old Windows OS, like Windows 7/Windows XP and Vista.

Cons: Easy to fail by mistake.

How to Use:

Step 1. Type cmd in the search box, right-click "Command Prompt" and select "Run as Administrator".

Step 2. Type the command line in the CMD window and hit Enter: 

wmic path softwarelicensingservice get OA3xOriginalProductKey

Type cmd command to find product key

Step 3. Wait for the prompt to find your product key on a computer.

Finding Windows and Software Key Is Essential, Let The Best Product Key Finders Help

As you know that the product key of a running operating system or installed program is essential and you must find the product key and save it properly as a backup.

Don't worry if you don't know or didn't know where to find a product key of Windows and programs on a computer. On this page, we listed the 7 best product key finders with detailed guide steps for you to follow. Just pick one product key finder like EaseUS Todo PCTrans and let the tool help now. 

1 Year Lifetime $55.96

Christmas Sale, huge discount

  Free Download

Support Windows 11/10/8/7

Was This Page Helpful?

Updated by Tracy King

Tracy joined in EaseUS in 2013 and has been working with EaseUS content team for over 7 years. Being enthusiastic in computing and technology, she writes tech how-to articles and share technical solutions about Windows & Mac data recovery, file/system backup and recovery, partition management and iOS/Android data recovery.

Read full bio

Product Reviews

TrustScore 4.7 | 34 reviews
  • EaseUS Todo PCTrans Free is a useful and and reliable software solution created to serve in computer migration operations, be it from one machine to another or from an earlier version of your OS to a newer one.

    Read More
  • EaseUS Todo PCTrans is by the folks at EaseUS who make incredible tools that let you manage your backups and recover your dead hard disks. While it is not an official tool, EaseUS has a reputation for being very good with their software and code.

    Read More
  • It offers the ability to move your entire user account from your old computer, meaning everything is quickly migrated. You still get to keep your Windows installation (and the relevant drivers for your new PC), but you also get all your apps, settings, preferences, images, documents and other important data.

    Read More

About EaseUS Todo PCTrans

EaseUS Todo PCTrans can transfer settings, applications and data between PCs and HDDs. Your all-round PC transfer and migrate software to upgrade devices without re-installation.

Product Reviews