They allow a single key to be used for multiple installations. Volume License: Refers to licenses granted in bulk to a specific organization.These licenses are not transferable between different machines, are directly linked to the hardware where first activated, and are often much cheaper than retail copies. 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.

OEM License: Original Equipment Manufacturer License.Retail License: A Windows license purchased in a retail environment, can be used to activate Windows multiple times on different systems (provided it is removed from the old system before installing on a new system).Product Key: Refers to the 25 alphanumeric characters required to activate a copy of Windows.I'll repeatedly refer to some basic terms throughout this article, so it'll make all of our lives easier if I clarify exactly what I'm talking about, right now. In this article: Basic Terms | How to Find Your Windows Product Key | Windows 10 Activation | Digital Entitlement Pre July 29 | Digital Entitlement Post July 29 | Pre July 29 Free Upgrade to Windows 10 | July 29 Cutoff | How to Link Your Windows 10 License with Your Microsoft Account | Using Windows 10 Without a Product Key | Windows 10 Downgrade Rights | Changing or Uninstalling Your Windows Product Key | How to Find Your Microsoft Office Product Key | 4 Tools to Find Product Keys Some Basic Terms Let's take a look at everything you need to know about Windows product keys.

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