Microsoft SQL model error fix

First:

Go to this path:

C:\Program Files\Microsoft SQL Server\MSSQL10_50.SQLEXPRESS\MSSQL\Binn\Templates

Second:

Copy and paste the database/file named model.mdf and modellog.ldf to this path

C:\Program Files\Microsoft SQL Server\MSSQL10_50.SQLEXPRESS\MSSQL\DATA