Installation is blocked on compressed drives. Ensure your target installation drive is not compressed.
Choose and set sa password. Add your Windows user as an admin.
: Although designed for newer versions, the modern SSMS works perfectly with SQL Server 2012 SP4 and provides a much better interface. System Requirements Processor: 2.0 GHz+ (x64) RAM: 1 GB (4GB or more recommended) sql server 2012 developer edition download iso updated
SQL 2012 runs on Windows 10/11, but requires SP4 to function reliably.
Once you have downloaded the with SP4, follow these steps to install it: Installation is blocked on compressed drives
. It no longer receives general security updates, bug fixes, or technical support. Continuing to use it in any environment (even development) poses a significant security risk unless you are an eligible enterprise customer with a paid Extended Security Update (ESU) plan, which itself only offers protection through July 8, 2025 Feature Completeness
Before mounting or extracting any downloaded ISO, compare its SHA-1 hash with the one listed above. If they match, you have an authentic, untouched copy. Add your Windows user as an admin
The Developer Edition of SQL Server 2012 contains the exact same advanced feature set as the premium Enterprise Edition. However, its usage parameters are radically different:
If you must maintain a legacy SQL Server 2012 environment, ensure you are running the final service packs: Source Link Service Pack 4 (SP4) The final major cumulative update (Jul 2019). Microsoft Download Center SP1 Express Lightweight, free version for small apps. Microsoft SP1 Express Feature Pack Additional tools and add-ons for 2012. Microsoft Feature Pack Modern Recommendations
Choose "Select All" for a full development experience (ensure you select Database Engine, Analysis Services, Reporting Services, and Integration Services). Instance Configuration: Choose Default or Named Instance.
Includes Integration Services (SSIS), Analysis Services (SSAS), and Reporting Services (SSRS).