For Windows Server, the supported approaches today are OS‑side deployment using Group Policy or registry keys, which can be deployed and managed through tools like SCCM.

It’s important not to rely on Microsoft‑managed controlled rollout or high‑confidence servicing for servers. Those mechanisms primarily apply to client Windows and are driven by telemetry that is typically limited or unavailable on Windows Server.

Secure Boot certificate updates for Server are delivered through normal Windows servicing, but they only apply after the device is explicitly opted in using Group Policy or registry configuration. In practice, most server environments should plan for a customer‑managed rollout rather than expecting certificates to be applied automatically.