Windows Server 2025 User CAL (1 User)

Windows Server 2025 User CAL from Alkimio. A Client Access License, or CAL, gives a user the right to access Windows Server. Each person who connects to your Windows Server 2025 servers needs a CAL, in addition to the server license itself.

This is a User CAL. It covers one named person, who can access the server from any number of devices, such as a desktop, laptop and phone. User CALs suit businesses where staff use several devices. If many people share one device, Device CALs may be more cost effective, and we can help you compare.

Windows Server 2025 CALs can be used to access Windows Server 2025 and earlier versions. CALs do not include Remote Desktop Services access, which needs a separate RDS CAL. Please tell us how your server is used and we will confirm the right mix of licenses.

Windows Server 2025 User CAL key features

• 1 Windows Server 2025 User CAL
• Access rights for one named user from any device

System requirements

• A licensed Windows Server 2025 or earlier server

Why buy Windows Server 2025 User CAL from Alkimio

• Correct licensing: license type, term and coverage are explained on every product. Read our licensing guide.
• Clear terms: license type, term and users or devices are shown up front, with no hidden fees.
• Setup help: our team helps with setup, activation and migration.
• Registered company: Alkimio Limited, registered in England and Wales, company no. 17491072.

Who Windows Server 2025 User CAL is for

• Businesses where each person uses several devices to access the server, such as a laptop, desktop and phone
• Organisations with more devices than users
• Each named user who accesses Windows Server 2025 needs one User CAL

Delivery and activation

After payment we send your license details and activation steps by email, usually within one business day. Some products are made available in your Microsoft 365 admin center instead. Orders placed outside business hours (Monday to Friday, 9:00 to 18:00 UK time) are processed on the next business day, and the license also appears in your Alkimio account under Orders.

Delivery is digital and free. If the license has not been activated, you can cancel within 14 days of delivery for a full refund. See our Delivery Policy and Refund and Cancellation Policy.

Windows Server 2025 User CAL FAQ

Does the Windows Server 2025 User CAL license expire?

No. A perpetual license does not expire. It covers this version only and does not include upgrades to future versions.

Can I move Windows Server 2025 User CAL to another device or server?

Transfer rights depend on the license type and Microsoft’s product terms.

For Microsoft’s own overview of the product, see Windows Server 2025 User CAL on microsoft.com.