These keys are generally supported for use with retail or OEM installation media. Apart from these, there are of course, several types of volume licensing keys too for enterprise level machines.

This isn't piracy, of course—you still need a valid Windows license to download the ISO and register Windows. If you purchased a retail version of Windows, enter the product key from the package. If ...

When Windows comes preinstalled on a computer, it has a license designated for Original Equipment Manufacturers. This OEM license only works to run Windows on the computer it came with, determined by ...

You might know your version of Windows (i.e., Windows Home or Windows Pro), and hopefully you knew how to get Windows for cheap or even free, but do you know if it ...