New Web Application is disabled in SharePoint 2010 for Windows 7 & Vista

I installed SharePoint2010 in the windows 7 machine for development environment. Installation as well as product configuration completed successfully. But I am not able to create a new web application in the Application Management area.

New option is disabled

To enable the new option in Cental Administration àApplication Management àManage Web Application, the below steps to be followed.

Step 1: Open the Internet Explorer àTools à Internet Options

Step 2: Open the Security tab à select the Local Intranet zone à then click the sites button

Step 3: Confirm whether automatically detect intranet network is checked and then Click the Advanced button

Step 4: Now add your central administration site address (eg: http://contoso(system name):100000/ ) in the Add this website to this zone text box.

Step 5: Click Add button to include above Central Administration site address in the websites list.

The following message will be displayed and click yes

Now Central Administration site address added in the websites list.

Step 6: Close the window and click consecutive ok buttons

Step 7: Now Open the Central Administration with Administrator rights (Right click à Run as Administrator)

Step 8: Open Central Administration à Application Management à Manage web Application to confirm new option is enabled.