Please use the links below to download and install the MS SQL Server 2014 – Express Edition:
1. First download and install Microsoft® SQL Server® 2014 Express
To do this, press Download, and then choose from the first two opportunities (SQLEXPR_x86_ENU.exe or SQLEXPR_x64_ENU.exe depending on the bitness of the OS)
2. During the installation please make sure to choose “Mixed Authentication”
3. We also recommend to download and install MS SQL Management Studio 2014 (Choose from SQLManagementStudio_x86_ENU.exe and SQLManagementStudio_x64_ENU.exe accordingly).
It will provide you with a powerful set of GUI tools for your SQL Servers.