The official .NET Framework 4.8 offline installer for Windows Server 2016 can be downloaded directly from the Microsoft Download Center
Introduction
The .NET Framework 4.8 offline installer for Windows Server 2016 is a self-contained, deployment‑ready package that: .net framework 4.8 offline installer for windows server 2016
Alternate direct download URL (often more reliable for automation): The official
Before you double-click that installer, ensure the following on your Windows Server 2016 machine: Go to the
Go to Control Panel > Programs and Features > Turn Windows features on or off. Under .NET Framework 4.8 Advanced Services, if you see it checked (or even present) alongside .NET Framework 4.6/4.7 entries, it indicates successful installation.