This is the Microsoft Windows 11 Pro 64-bit English DVD, part number FQC-10528. It is the OEM/DSP (system builder) single-licence pack used when building a new PC or reloading a machine without a valid Windows licence. Windows 11 Pro includes everything in Windows 11 Home and adds the business and power-user features: BitLocker device encryption, Remote Desktop hosting, Hyper-V virtualisation, Windows Sandbox, Group Policy, and joining a Windows Server domain or Microsoft Entra ID. That makes it the usual choice for small businesses, IT departments and enthusiasts. An OEM licence is intended for installation on one new PC and is generally tied to the first computer it is activated on, unlike a retail licence that can be moved. Check that your hardware meets Microsoft's minimum requirements: a compatible 64-bit processor of 1GHz or faster with 2 or more cores, 4GB RAM, 64GB storage, UEFI with Secure Boot, TPM 2.0, and a DirectX 12/WDDM 2.0 graphics card. Supplied as an installation DVD with product key. Software carries no warranty.