Win 10 Keyfinder Options

Here are some ways to find Win10 Product Keys. Some will also return Office keys.
Keep in mind that the key is stored in BIOS as well as OS and they may not be the same. The BIOS key is what was originally used during first install.

-Download and run Belarc Advisor

-Go to Windows Store and download and run ShowKeyPlus in Apps

-Use C:> Prompt (administrator)
Enter: wmic path softwarelicensingservice get OA3xOriginalProductKey

-Use Powershell (administrator)
Enter: (Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey

-Download and run ProduKey

-Download and run Magical Jelly Bean Keyfinder