The JDK can be installed on Windows in four easy steps:

1. Double-click the downloaded installation file to launch the JDK installer.
2. Click the Next button in the welcome window. This action will lead you to a window where you can select the components you want to install. Leave the selection at the default and click Next.

3. The following window prompts the selection of the destination folder for the installation. For now, leave this folder as the default (also take note of the location of this folder, as you will need it in a later step). Click Next.
4. Follow the instructions in the upcoming windows and click Next when necessary. You may be asked for your administrator's password, enter it when necessary. Java will be installed on your computer.

After the JDK installation has concluded, you will need to set the JAVA_HOME environment variable on your computer. To do this:

1. Open your Control Panel.
2. Select Edit environment variable.
3. In the window that has opened, click the New button. You will be prompted to add a new environment variable.
4. Input JAVA_HOME as the variable name and enter the installation path of the JDK as the variable value.
5. Click OK once to add the environment variable.