Step:- 1. Install Asp.net 3.5 version using server manager.
(i) Open server manager click on server manager button.
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(ii) Click on Add roles and features.
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(iii) Select .NET framework 3.5 Features and install.
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(iv) Click on next.
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(v) When you will get below message in screenshot close and exit the server manager installation wizard.
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Step:- 2. For download SQL express edition 2012 setup click here and save it on your server.
Step: 3. When setup will download on your server. Double click on the setup file.
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Step:- 4. Click on “New Sql stand-alone installation or add features in existing installation”.
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Step:- 5. Select terms and policy and click on next.
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Step:- 6. Select features which you want to install in SQL database and defined installation directory and click on next.
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Step:- 7 Enter instance name and id of SQL database server.
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Step:- 8 Select mixed mode enter sa user password of sql database server.
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Step:- 9. Select option “install and configure” and click on next and next again. Now the installation is started of sql and it will take 20-40 minutes for complete.
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Step:- 10. When you will get the message below means sql installation is completed.
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Now SQL database server is installed and operational.
Thankyou..