To download SQL Server 2014 Developer Edition, you can follow these steps:
Visit the Microsoft Download Center website: SQL Server 2014 Developer Edition.
Click on the "Download" button.
You'll be prompted to sign in with your Microsoft account. If you don't have one, you can create a new account for free.
After signing in, you'll be taken to the download page. Here, you may need to select the appropriate language and then click "Download" again.
Review and accept the license terms by checking the box next to "I accept the terms in the License Agreement," and then click "Next."
Choose the installation package that matches your system architecture (32-bit or 64-bit) and click "Next" to start the download.
The download process will begin. Once the download is complete, you can proceed to install SQL Server 2014 Developer Edition on your system.
Please note that you might need to restart your system after the download and before the installation process begins. Additionally, ensure that your system meets the minimum requirements for installing SQL Server 2014 Developer Edition.