Now, open the Command Prompt and run it as administrator. We will make use of the ‘cd’ command to change the operating directory on the Command Prompt to the one where your Java program is stored.

If you want to open an Elevated Command Prompt, which is one that runs with Administrator privileges, you can see the How to open a Windows 10 Elevated Command Prompt article instead.

Instead of firing up the command prompt and manually navigating the depths of your filesystem, just Shift-Right-click the folder, click Open Command Window Here, and voilà—you're there.

But unlike other apps, the Command Prompt isn't always easy to find. Here's how to open Command Prompt on your PC, no matter which version of Windows 10 you have.

There are three simple ways to set JAVA_HOME in Windows. This tutorial shows you how to do it manually, from the command line and through the installer.