Windows Product Key Finder v1.0

A Full Review of Windows Product Key Finder, a Free Key Finder Tool

Windows Product Key Finder in Windows 7

Windows Product Key Finder is just that—a key finder program. It can find the product key for a few Windows versions, but unlike similar software, it's functionality stops there.

Though Windows Product Key Finder doesn't detect keys from installed software, it's still great for finding the Windows product key. You can find your key in seconds and then easily copy it elsewhere for safe keeping.

Please read our Key Finder Programs FAQ for more information on key finder programs in general.

This review is of Windows Product Key Finder v1.0. Please let me know if there's a newer version I need to review.

More About Windows Product Key Finder

Here are some more details on Windows Product Key Finder, including what major operating systems it finds product keys for:

Finds Keys for Operating Systems: Windows 7, Windows Vista, Windows XP. Windows Product Key Finder will open in Windows 8 and Windows 10 but the product key it displays isn't the correct one


  • Very small download size (80 KB)
  • Extremely simple interface
  • Program has only one button
  • Shows the OS version number, install date, service pack number, and serial number in addition to the product key and registered user
  • Can copy the product key to the clipboard
  • Doesn't need to be installed (portable)


  • Doesn't work correctly with Windows 8 or Windows 10
  • Must click a button to show the product key
  • Can't export the key to a file

My Thoughts on Windows Product Key Finder

If you don't need to find product keys or serial numbers for anything but the Windows operating system, Windows Product Key Finder is absolutely perfect—that is, if you don't need to find the Windows 8 or Windows 10 key.

You must click the Find Key button to make the program work, but it's not really that big of an issue because it's just one button and the product key is displayed instantly afterward.

I like that you can copy out the product key from the program window, but you're unable to copy the serial number, install date, etc., which is too bad.

Try a different free key finder program if this one wasn't helpful. There are also premium key finder tools you can use.