Using unsupported software in production is risky.
If you try to install SQL Server 2012 on Windows 11, you will likely get a "This program has compatibility issues" warning. Ignore it. However, you turn on .NET Framework 3.5 via "Windows Features" before running setup. Otherwise, the installation will fail silently. Sql Server 2012 Developer Edition Download Iso
If you specifically need the 2012 environment for legacy development: Using unsupported software in production is risky
AlwaysOn Availability Groups, Columnstore Indexes, FileTable, and improved T-SQL functionalities. However, you turn on
Before you proceed to use SQL Server 2012, you must understand its current support status. The product officially reached its end of mainstream support on . Extended support, including paid security updates, ended on July 8, 2025 .
If your organization maintains an active enterprise account on the Visual Studio Portal, navigate to the "Downloads" tab. Search for SQL Server 2012 Developer Edition with Service Pack 4 . This repository contains clean, verified pristine .iso files containing cryptographic signatures. 2. Microsoft Volume Licensing Service Center (VLSC)