Free Install Java Runtime Environment
Install Free Java Runtime Environment Download
Jre-8u291-linux-x64.tar.gz

This page describes how to install and uninstall JRE 8 for Windows.

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The page has these topics:

See 'JDK 8 and JRE 8 Installation Start Here' for general information about installing JDK 8 and JRE 8.

System Requirements

See http://www.oracle.com/technetwork/java/javase/certconfig-2095354.html for information about supported platforms, operating systems, and browsers.

See 'Windows System Requirements for JDK and JRE' for minimum processor, disk space, and memory requirements.

If you have any difficulties, see http://docs.oracle.com/javase/8/docs/technotes/guides/troubleshoot/index.html, 'Windows Online Installation and Java Update FAQ', or submit a bug report at http://bugreport.java.com/bugreport/.

Proxy Settings and Authentication

To use the Windows Online Installer, you must be connected to the Internet. If you are running behind a proxy server, you must have your proxy settings correctly configured. If they are not configured, or are incorrectly configured, the installer will terminate with the following message:

If you see this message, check your proxy settings: From the Start menu select Settings, click Control Panel, double-click Internet Options, select the Connections tab, and click the LAN Settings button.

If you do not know what the correct settings should be, check with your Internet provider or system administrator.

Installation Instructions Notation

For any text in this document that contains the following notation, you must substitute the appropriate update version number:

For example, if you were downloading the JRE installer for 32-bit systems for update 1.8.0_01, the file name: jre-8version-windows-i586.exe would become jre-8u1-windows-i586.exe.

Similarly, if you were downloading the JRE installer for 64-bit systems for update 1.8.0_01, the file name jre-8version-windows-x64.exe would become jre-8u1-windows-x64.exe.

Installation Instructions

Installing the JRE consists of two main steps:

Downloading the Installer

You have a choice of the following kinds of JRE installers that you can download:

Windows x86 Online: jre-8version-windows-i586-iftw.exe (The letters iftw mean 'install from the web.')
Windows x86 Offline: jre-8version-windows-i586.exe
Windows x64: jre-8version-windows-x64.exe

The Windows x86 Online Installer is a small program that will download more installer files based on your system configuration. Using this installer can help you avoid downloading large amounts of unnecessary files. For more information, see 'Windows Online Installation and Java Update FAQ'.

The Windows x86 Offline Installer, as well as the installers for 64-bit systems, contain everything needed to install the JRE.

Note:

The Microsoft Windows Installer (MSI) Enterprise JRE Installer is also available, which enables you to install the JRE across your enterprise. It requires a commercial license for use in production. For more information, see the MSI Enterprise JRE Installer Guide at https://docs.oracle.com/javacomponents/msi-jre8/install-guide.

Click the JRE Download link for the installer you want to use. A dialog box opens. Depending on your browser, click Save or Save File to save the JRE installer without installing it. Verify that you have downloaded the entire file by comparing the size of the file you downloaded with the expected size shown on the download page. Alternatively, (depending on your browser) click Run or Open to run the JRE installer from your browser.

Running the Installer

Note:

You must have administrative permissions in order to install the JRE.

If you saved the JRE installer to your computer, run the installer by double-clicking it. Follow the instructions the installer provides. The installer notifies you if Java content is disabled in web browsers, and provides instructions for enabling it. If you previously chose to hide some of the security prompts for applets and Java Web Start applications, the installer provides an option for restoring the prompts. When you are finished with the installation, you can delete the downloaded file to recover disk space.

Note the following:

The public JRE installed with the JDK is not registered. (This also applies to the 64-bit version of the JDK.) You must set the PATH environment variable to point to JAVA_HOMEbin (where JAVA_HOME is the location where you installed the public JRE) to register the JRE. See 'Private Versus Public JRE' for more information about the public JRE.
By default, Java Access Bridge is disabled. To enable it, see http://docs.oracle.com/javase/8/docs/technotes/guides/access/enable_and_test.html#enabling_jab.
After installation, use the Java item in the Windows Start menu to get access to essential Java information and functions, including help, the Java Control Panel, and checking for updates.

Uninstalling the JRE

To uninstall the JRE, use the Java Uninstall tool, which you can access in the following ways:

If the JRE is version 8u20 or later, uninstall it with the 'Add/Remove Programs' utility in the Microsoft Windows Control Panel. The Java Removal Tool is integrated with the uninstallation process, and it will guide you through the removal of older JREs.
Use the online Java Uninstall tool:
https://www.java.com/en/download/uninstallapplet.jsp

The Java Uninstall tool helps you improve your computer security by simplifying the process of finding and uninstalling older versions of Java. The Uninstall tool shows you a list of the Java versions on your computer and then removes those that are out-of-date.

Note:

The Java Uninstall tool will not run if your system administrator specified a deployment rule set in your organization.

A deployment rule set enables enterprises to manage their Java desktop environment directly and continue using legacy business applications in an environment of ever-tightening Java applet and Java Web Start application security policies. A deployment rule set enables administrators to specify rules for applets and Java Web Start applications; these rules may specify that a specific JRE version must be used. Consequently, the Java Uninstall tool will not run if it detects a deployment rule set to ensure that no required JREs are uninstalled.

Install Free Java Runtime Environment