Windows Server 2025 Standard 16 Core + 10 User CALs

Windows Server 2025 Standard 16 Core + 10 User CALs combines a Windows Server 2025 Standard 16-core licence with ten Windows Server User CALs for organisations that need a modern Microsoft server platform with licensed user access.

Windows Server 2025 Standard is designed for business workloads such as Active Directory, file and print services, DNS, DHCP, application hosting and virtualisation. The included ten User CALs provide access rights for ten licensed users, with each licensed user able to access the server from multiple devices, subject to Microsoft’s licensing terms.

Licence Information

• Licence type: Retail
• Licensing model: 16-core server licence + 10 User CALs
• Delivery: Digital

Core coverage, CAL assignment, transfer and reactivation rights are subject to Microsoft’s applicable licence terms and product conditions.

Windows Server 2025 Standard 16 Core + 10 User CALs Package

• Windows Server 2025 Standard edition
• 16-core server licence
• 10 Windows Server User CALs
• Hyper-V virtualisation support
• Digital delivery
• Activation and installation guidance

16-Core Windows Server 2025 Licensing

Windows Server Standard uses Microsoft’s Per Core/CAL licensing model. When licensing a physical server, the required number of core licences is based on the number of physical cores, subject to a minimum of 8 core licences per physical processor and a minimum of 16 core licences per server.

A 16-core licence pack therefore covers the minimum server-level requirement for qualifying hardware with up to 16 physical cores, provided the server also meets Microsoft’s minimum per-processor licensing requirement. Servers with more than 16 physical cores require additional core licences.

Standard Edition Virtualisation Rights

When all physical cores on the server are correctly licensed, Windows Server 2025 Standard permits use of the server software in two Operating System Environments (OSEs). Microsoft also permits one running instance in the physical OSE in addition to the two virtual OSEs when that physical instance is used solely to host and manage the virtual OSEs.

If you need additional virtual OSEs, Standard edition can be licensed again for the same server in accordance with Microsoft’s licensing rules. This is commonly referred to as stacking licences.

For current licensing details, see Microsoft’s Windows Server 2025 licensing guidance.

What the 10 User CALs Provide

A Windows Server User CAL grants one assigned user the right to access appropriately licensed Windows Server software. It does not include the server operating system itself and does not increase the number of licensed server cores.

User CALs are useful when employees access Windows Server from multiple devices. One licensed user can access the server from different devices such as a desktop, laptop or tablet, subject to the applicable Microsoft licensing terms.

This package includes ten User CALs. If more than ten users require access, additional User CALs will normally be required. Microsoft also offers Device CALs for environments where several users share a smaller number of devices.

Microsoft explains the distinction between User and Device CALs in its Client Access Licensing guidance.

Business Workloads and Server Features

Windows Server 2025 Standard supports common enterprise and small-business infrastructure roles, including Active Directory Domain Services, centralised authentication, file storage, print services, DNS, DHCP and compatible line-of-business applications.

The platform also supports Hyper-V for virtualised workloads and includes security and management capabilities intended for modern Windows Server environments. Available features can depend on hardware, configuration and the role being deployed, so server compatibility should be checked before installation.

Who This Package Is For

Windows Server 2025 Standard 16 Core + 10 User CALs is suitable for businesses and IT teams that need a Windows Server 2025 Standard deployment with access rights for up to ten licensed users.

It can fit offices deploying a domain controller, centralised file server, application server or a lightly virtualised environment. Organisations planning more than two virtual OSEs, more than ten users or a server with more than 16 physical cores should review the additional licensing required before deployment.

Digital Delivery

This product is delivered digitally. After payment confirmation, licence information and installation or activation guidance are sent electronically. No physical disc or boxed product is shipped.

Please confirm your server’s processor and physical-core configuration, required number of users and intended virtualisation setup before purchase so that the licensing configuration matches your environment.

If you need a smaller CAL bundle, see our Windows Server 2025 Standard 16 Core + 5 User CALs option.