This is the list of Free Product Key Finder Softwares that will retrieve product key of your Windows, MS office, games or other softwares.

1. Windows Product Key Viewer

Windows Product Key Viewer is a free key finder software which will display the installed Windows license and other important Windows system information. This tool also display the full Windows version, service packs, product id, installation date and time, registered user, VMWare and organization and the current Windows uptime.

Read more about Windows Product Key Viewer

2. Abelssoft MyKeyFinder

Abelssoft MyKeyFinder is a freeware that will analyzes your PC and brings you back all your serial numbers with just a single mouse click. This key finder software is the utility can do this work for you and shows you all serials in a nice overview: Lost a serial number including recovery of Windows and Office keys…

MyKeyFinder works in Windows XP, Vista, Windows 7 and Windows 8.

Read more about MyKeyFinder

3. Windows Product Key Finder

Windows Product Key Finder is  a free key finder software. This tool will find the product key for a few Windows versions, but it doesn’t detect keys from installed software, it’s still great for finding the Windows key. With You can find your key in seconds and then easily copy it elsewhere for safe keeping.

Read more about: Windows Product Key Finder

4. Belarc Advisor

Belarc Advisor is on of the great free system information tools. And it’s also a key finder software that can find product key or serial number for installed programs!

Read more about Belarc Advisor

5. Game Key Revealer

Game Key Revealer is a key finder software that can find product keys for lot of games such as: Battlefield 2, Call of Duty, Counter-Strike,…  and it also find the CD-Key and Serial for installed games on PC.

Read more about: Game Key Revealer

6. Product Key Informer

Product Key Informer is another free key finder software but it finds product keys for only Microsoft Office 2007, Office 2003, Office XP, Windows 7, Windows Vista, Windows XP, Windows 2000, Windows ME, and Windows 98.

Read more about: Product Key Informer

7. Keyfinder Thing

Keyfinder Thing is another free, easy to use key finder software that retrieve product keys or CD Keys of Microsoft software installed on your system.

Read more about Keyfinder Thing

8. GeProductKeys Finder

GeProductKeys Finder is a free key finder software which can find and show product keys for Windows, MS Office programs and some other softwares. This is also a portable software, and allows you to export keys to a file!

Read more about GeProductKeys Finder

9. Lazesoft Windows Key Finder

Lazesoft Windows Key Finder will find, copy to the clipboard, display and allow you to print out your Windows 2000, XP, 2003, Vista, 2008, 2012 or 7 product key and all versions of Microsoft Office product keys. The tool allows you to copy the recovered product keys to the clipboard, save it to a file and print it out for safe keeping.

Read more about Lazesoft Windows Key Finder

10. Magical Jelly Bean Keyfinder

Magical Jelly Bean Keyfinder a free key finder software that retrieves your Product Key (license key) used to install windows from your registry. This tool also has a community-updated configuration file that retrieves product keys for many other applications.

Read more about Magical Jelly Bean Keyfinder

11. Free PC Audit

Free PC Audit is a freeware system, hardware and software information tool. This key finder software extracts details of all components of the PC, shows installed software with version and product key. You can use Free PC Audit as a portable application. Free PC Audit can be run from a removable storage device such as a CD-ROM drive, USB flash drive, flash card, or floppy disk.

Read more about Free PC Audit

12. MSKeyViewer Plus

MSKeyViewer Plus is a free portable key finder software which is easy to find the product key for a large number of softwares. It instantly displays product keys – no scanning of your registry required.

Read more about MSKeyViewer Plus

13. Winkeyfinder

Winkeyfinder is a free key finder software that allows you to find and backup of your Windows XP activation. It also saves your product keys more securely by encrypting them before they are saved so that it ads an extra layer protection on saved keys on your computer. Winkeyfinder can find key of: Windows 98/ME/2000/XP/Vista/7 and Microsoft Office 2010/2007/2003/XP/2000 SP2/97.

Read more about Winkeyfinder

14. Product Key Finder

Product Key Finder is a free Windows key finder software that retrieves license key information (CD Keys) from the Windows registry. It currently supports retrieval of 200+ licenses from applications such Microsoft Windows, Microsoft Office and Adobe Acrobat.

Read more about Product Key Finder

15. SterJo Key Finder

SterJo Key Finder is a free key finder software that can find lost Windows product keys, which is especially important in searching for Windows 7 product key, as well as lost Windows 8 key because they are mostly used PC systems at this moment. This tool also will recover what looks lost and it will do it without much effort of yours.

Read more about SterJo Key Finder

16. RockXP

RockXP is a free tool that allows you to retrieve password and recover lost keys of Windows and MS Office. RockXP also is a password generator and password retriever.

Read more about RockXP

17. LicenseCrawler

The LicenseCrawler is an another free Product Key Finder Software that can discover application product keys and other serial numbers or licenses very quickly and supports all versions of Windows operating system from Windows 95 over Windows 7 to Windows Server 2008 R2 (64Bit).

Read more about LicenseCrawler

18. ProduKey

ProduKey is a small utility that displays the Product keys and the CD-Key of Microsoft Office (2003, 2007), Windows (Windows 7 & Vista), Exchange Server, and SQL Server installed on your computer.

Read more about ProduKey

19. Windows Product Key Finder Professional

Windows Product Key Finder Professional is a great free key finder software for Windows which allows you to find and recover your CD Product key for Windows or Office programs for the purposes of reinstalling / repairing your Windows or Microsoft Office setup. It retrieves your lost key or serial for Windows 8, Windows 7, Vista, XP, 2000, 2003, 2008; Office 2013, 2010, 2007, 2003, XP.

Read more about Windows Product Key Finder Professional

20. WinGuggle

WinGuggle is a small and free key finder software that can Set, Change and Backup your Original Equipment Manufacturer’s Information. WinGuggle can also get your Windows 8/7/Vista/XP and Office Product Key (Microsoft Office 2010, Office 2007, Office 2003, and Office XP) for Backup easily.

Read more about WinGuggle

21. SIW (System Information for Windows)

SIW is an advanced System Information for Windows tool that gathers detailed information about your system properties and settings and displays it in an extremely comprehensible manner. This key finder software is freeware for personal use only.

Read more about SIW (System Information for Windows)