
Product keys you bought using Windows Anytime Upgrade or Get Genuine Windows. Product keys included in the box the Windows DVD came in. Product keys included in the confirmation email you received after buying Windows from an online retailer. Product keys included in the packaging or the Certificate of Authenticity (COA) attached to your PC that came installed with Windows. The following types of product keys are supported:

Windows 8, or Windows 8.1 product key to activate During the free upgrade, you can use a valid Windows 7, Starting with the November update, Windows 10 (Version 1511) can be activated using some Windows 7, Its available in following languages: English (United States), English (Great Britain), German, Spanish, French, Italian, Japanese, Korean, Portugese, Russian, Chinese (Simplified), Chinese (Traditional).Thank you for contacting Microsoft Community. Windows 8.1 Enterprise is available in both 32-bit (x86) and 64-bit (圆4) versions. System requirements for Windows 8.1 Enterprise are same as of Windows 8.1 which are mentioned here. “ Assigned Access” lets users set any particular app as default shell on a device so other users only use the specified application and cannot access other system files and applications. “ Windows Enterprise Side-Loading” allows users to side-load apps on domain-joined PCs and tablets running Windows 8.1 Enterprise.

“ AppLocker” helps you in restricting files and apps from running on PC. “ Virtual Desktop Infrastructure (VDI)” provides users the ability to play 3D graphics, use USB peripherals and use touch-enabled devices across any type of network (LAN or WAN) for VDI scenarios which was made possible due to enhancements in Microsoft RemoteFX and Windows Server 2012. “ DirectAccess” allows users to access their network resources remotely without having to launch a separate VPN. You can also prevent other users from customizing Start Screen look-n-feel using this tool. “ Start Screen Control” helps you in controlling layout of Start Screen.

“ Windows To Go Creator” helps users in creating a fully functional copy of Windows 8.1 on a bootable USB drive similar to Windows 8 as mentioned here.
