Hold your Windows key (located at the bottom left of your keyboard to the right of the Control key) and press “R”.If the above does not apply to you, then you can check if Java is installed on your computer with the following instructions: Windows If you are on Windows and are not sure if you are using the new Minecraft launcher or are getting “This application requires a Java Runtime Environment” when launching Minecraft, then you can download Minecraft.msi from under “Minecraft for Windows”. If you are using the new Minecraft launcher for Windows, you do not have to install Java on your computer unless you need it for applications other than Minecraft. Starting from early 2015, the Minecraft launcher for Windows now ships with a built in version of Java that the launcher automatically keeps up-to-date. Java comes in many shapes, and forms, which may make it confusing exactly which version of it you should have installed, which is what this should hopefully explain. The Java Runtime Environment (JRE) is software that allows for programs written in the Java programming language, for example the desktop editions of Minecraft, to run on your computer.
