System.Data.SqlClient.SqlException: Directory lookup for the file...failed with the operating system error 5(Access is denied.)

//E.g SqlExpress
1.Click the Windows Start button, and then click Run. The Run dialog box appears.
2.Type Services.msc into the Open field, and then click OK. The Services
panel appears:
3.Right-click the SQL Server (SqlEx[ress) service, and then click Properties from the shortcut menu. The SQL Server (SqlExpress) Properties (Local Computer) dialog box appears:
4.On the Log On tab, select Local System account for the Log on as option.
5.Press Apply and then press OK on the dialog box that appears.
6.Click on the General tab and then press Stop the stop the service, and Start to restart the SqlExpress service.
7.Press OK and close the services Console.
8.Launch SqlExpress and attempt to now restore the database.
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