Windows installation
There are some preliminary steps to getting Jenkins installed.
Prerequisites to installing Jenkins
You need to make sure that Java is installed and starting with Jenkins 2.54. Jenkins now requires Java 8.
Finding your version of Windows
Click the Start Windows icon, type system
in the search box, and then click System
in the Programs
list.
With the System
applet now open, titled View basic information about your computer
, find the System
area, located under the large Windows logo.
The system type will say either 64-bit operating system or 32-bit operating system.
Installing Java
To install Java, please go to the Java downloads page (http://www.oracle.com/technetwork/java/javase/downloads/index.html):

Make sure to click the Accept License Agreement
radio button and then click Windows Download
and make sure to pick the right architecture you have; namely, 32-bit or 64-bit OS.
Then use the installer to install Java in Windows.
Windows installer
Installing Jenkins in the Windows OS...