

Volume licenses are still only assigned to massive organizations, and so on. An OEM license is still tied to a single machine. A retail license is still a retail license. That doesn't mean it no longer exists, rather, it has been marked in the big Microsoft Windows 10 upgrade database as used. If you reinstall Windows 10, Microsoft will recognize your system hardware and validate the installation, provided you're not violating the rules of the licensing agreement.ĭid you just ask "But what does that mean?" The installation process creates a unique installation ID for your system.Īs such, the product key for your existing installation – Windows 7, 8, or 8.1 – is "absorbed" during the upgrade process. The free Windows 10 upgrade process is called Digital Entitlement, and it links your Product Key to the hardware you're upgrading on. Can also be referred to as an Activation Key.

If you've purchased a new computer or laptop that came with a pre-installed version of Windows, it is highly likely to have been an OEM version. These licenses are provided to equipment manufacturers to include with their hardware sales.

