All mentioned editions have the ability to use language packs, enabling multiple user interface languages. This functionality was previously only available in Windows 7 Ultimate or Enterprise. Single-language variants of Home and Pro editions are also available.
Windows 10 Home is designed for use in PCs, tablets and 2-in-1 PCs. It includes all consumer-directed features and is the equivalent to basic Windows 8, 8.1, Windows 7 Home Basic, and Home Premium.
Windows 10 Pro is comparable with Windows 7 Professional, Ultimate and Windows 8/8.1 Pro. It builds on the Home edition and adds features essential for businesses, and functionally equivalent to Windows 8.1 Pro.
Not part of the initial line up of Windows, this edition was introduced in July 2016 for hardware partners on new devices purchased with the discounted K-12 academic license. It features a Set Up School PCs app and does not include Cortana, Windows Store suggestions and basic tips and tricks of Windows 10.
Windows 10 Enterprise provides all the features of Windows 10 Pro, with additional features to assist with IT-based organizations, and is functionally equivalent to Windows 8.1 Enterprise.
Windows 10 Enterprise Long Term Servicing Branch (LTSB) is similar to Windows 10 Enterprise but does not include Cortana, Windows Store, the Edge browser, Photo Viewer and the UWP version of Calculator (replaced by classic version), and will not receive any feature updates, gives companies more control over the update process. Windows 10 Enterprise N LTSB also lacks the same components absent in other N variants (see below), and it is the most stripped down edition of Windows 10 available.
Windows 10 Education provides all Windows 10 Enterprise features, designed for use in schools, colleges, and universities. It is available with Microsoft's Academic Volume Licensing.
Windows 10 Mobile is designed for smartphones and small tablets. It includes all basic consumer features, including Continuum capability. It is the de facto successor of Windows Phone 8.1 and Windows RT.
Windows 10 Mobile Enterprise provides all the features in Windows 10 Mobile, with additional features to assist with IT-based organizations, in a manner similar to Windows 10 Enterprise, but optimized for mobile devices.
As with all versions of Windows since XP, all Windows 10 editions for PC hardware have "N" and "KN" variations in Europe and South Korea that exclude certain bundled multimedia functionality, including media players and related components, in order to comply with antitrust rulings. The "Media Feature Pack" can be downloaded and installed to restore these features. As with Windows 8.1, a reduced-price "Windows 10 with Bing" SKU is available to OEMs; it is subsidized by having Microsoft's Bing search engine set as default, which cannot be changed to a different search engine by OEMs. It is intended primarily for low-cost devices, and is otherwise identical to Windows 10 Home.
Designed specifically for use in small footprint, low-cost devices and IoT scenarios. It is a rebranded version of Microsoft's earlier embedded operating systems, Windows Embedded. Three editions are already announced: IoT Core, IoT Enterprise, and IoT Mobile Enterprise.
At the time of launch, Microsoft deemed Windows 7, Windows 8 and Windows 8.1 users eligible to upgrade to Windows 10 free of charge, so long as the upgrade takes place within one year of Windows 10's initial release date. Windows RT and the respective Enterprise editions of Windows 7, 8, and 8.1 were excluded from this offer. Since July 29 2016, Windows 10 is no longer offered as a free upgrade, instead a license must be purchased.