Installed java where is it

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I have improved munsingh 's answer above by testing for the registry key in bit and bit registries, if needed:. Right click on OpenJDK platform binary. Click open file location. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How do I find where JDK is installed on my windows machine?

Ask Question. Asked 10 years, 10 months ago. Active 1 month ago. Viewed 1. I need to know where JDK is located on my machine. Improve this question. Ashine Ashine 4, 3 3 gold badges 23 23 silver badges 26 26 bronze badges. Today I downloaded the version 7. There was an older version 6 JRE already installed. JavaHome — JohnP2. Add a comment.

Active Oldest Votes. Improve this answer. Pablo Santa Cruz Pablo Santa Cruz k 30 30 gold badges silver badges bronze badges. Show 2 more comments. In windows it is, where java — Pabitra Dash. If for whatever reason, javac is not in the path, it won't return any result, but it doesn't mean JDK is not installed.

So in general case, the file search solution proposed by grokster solution will guarantee a result thought might take time to complete. Previous releases have separate uninstallation instructions for Java Web Start. When you remove the application, you see an Uninstaller Error dialog box saying:. If you say Yes to this, then you will see another Uninstaller Error dialog box saying:.

Please contact your system administrator. Refresh the Add or Remove Programs by pressing F5 or reopen the panel. To avoid seeing the misleading message, either press F5 or reopen the dialog box. Java Plug-in technology, included as part of the JRE, establishes a connection between popular browsers and the Java platform. This connection enables applets on websites to be run within a browser on the desktop.

No user intervention is necessary. However, this earlier version of the Java Plug-in is still shipped with Java SE 9 for compatibility purposes but is no longer fully supported. It will be removed in a future release. When the installed JRE falls below the security baseline or passes its built-in expiration date, an additional warning is shown to users to update their installed JRE to the latest version.

For businesses that manage the update process centrally, users attempting to update their JRE individually, may cause problems. A deployment property, deployment. To suppress this specific warning message, add the following entry in the deployment properties file:. After jre-9 is installed, the Java Removal Tool provides the list of outdated Java versions in the system and helps you to remove them. 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. The following sections provide tips for working around problems that are sometimes seen during or while following installation instructions. If you see the error message system error during decompression , then you might not have enough space on the disk that contains your TEMP directory.

If you see the error message This program cannot be run in DOS mode , then do the following:. In Microsoft Windows, when you create a new file in Microsoft Notepad and then save it for the first time, Notepad usually adds the. Therefore, a file that you name Test. Note that you cannot see the. To prevent the. It is possible to name directories using characters that are not part of the system locale's code page. If such a directory is part of the installation path, then generic error occurs, and installation is not completed.

Error is a Windows installer error code. It indicates that the installation process has failed. The exact reason for this error is not known at this time. To prevent this problem, ensure that the user and system locales are identical, and that the installation path contains only characters that are part of the system locale's code page. User and system locales can be set in the Regional Options or Regional Settings control panel.

I downloaded the installer and it is less than 1 megabyte. Why is it so small? Using this installer helps users to avoid downloading unnecessary files. Why is this? Regardless of whether an alternate target directory was selected, Java Update needs to install some update files on the Windows system drive. After the JRE bootstrap installer is downloaded and executed, why does the message "This installer cannot proceed with the current Internet Connection settings of your system.

The JRE bootstrap installer uses the system Internet Connection settings to connect to the web for downloading extra files. Smart Home. Social Media. More Button Icon Circle with three vertical dots. It indicates a way to see more nav menu items inside the site menu by triggering the side menu to open and close. Melanie Weir. To check which version of Java you have on your Windows computer, you'll need to open the Command Prompt app.

If you don't have the latest version of Java installed, Windows may have trouble downloading or running certain programs. Visit Business Insider's homepage for more stories. Melanie Weir is a freelance author for Insider, mainly focusing on the Tech Reference section, but occasionally contributing to Lifestyle and Entertainment topics as well.