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Server CAL license Microsoft Windows Server CAL 2025 — 1 license, Polish, supports 8 cores, 64-bit
Microsoft Windows Server CAL 2025 provides client access licenses required to connect users and devices to Windows Server environments. This CAL edition is intended for systems that meet the minimum requirements of 32GB storage, 0.512GB RAM and 1.4GHz processor speed, and supports hybrid cloud integration, enhanced security features and modern platform compatibility.
Windows Server CAL 2025 enables access to servers with improved hybrid capabilities for easier integration with Azure Arc, enhanced hardware- and software-level security measures including an updated Active Directory, and performance enhancements such as faster networking, improved flash storage support and GPU partitioning for edge inferencing. The product is designed for simpler upgrade and scalability workflows and includes features that reduce downtime like live hotpatching.
Assign the CAL to the user or device that requires access to your Windows Server. Ensure the target server meets the hardware prerequisites (minimum storage, RAM and CPU) and integrate with your existing Windows Server deployment. To enable hybrid features, connect the server to Azure Arc according to your Azure configuration. Follow Microsoft licensing policies and your organization’s IT procedures when deploying licenses.
Use one CAL per user or device that accesses Windows Server resources. Verify system requirements before deployment, keep the server and CAL updates current, and configure Azure Arc and Active Directory according to security baselines to benefit from hybrid and security features.
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