
This free key finder application helps retrieve MS Windows.

Find those lost passwords from over 8000 Windows OS softwares and programs and from several other operating systems for free using the Product Key Explorer.

Next, create a Windows 10 installation disc or USB stick and run it on your system. Depending on the version of Windows 10 you have installed, you will see the product key listed next to its name (see screenshot below) when you run it.
