Scroll download the select the download option. Java SE in my case.
Run the download file, netbeans-7.2.1-ml-javase-windows.exe.
Click Next to start installation.
Accept the terms in the license agreement, and click Next.
Accept the terms t install JUnit, and click Next.
Select the location to install. The installer will search te installed JDK if exist. Next.
Review all the setting, and click Install.