How to find out what java is on the computer. Java Runtime Environment is a minimal Java for Windows.

The other day I was doing a Java update and decided to make a small instruction on how to update Java, which is necessary to open many sites and applications. If installed old version, it is possible that these programs and sites will not work correctly. Therefore, it doesn’t hurt to have the latest version of the program, especially since it will not bother you about trifles. Just when you go to such a site, an icon will appear in the tray, which will indicate that java has been turned on.

The easiest way to make an update is through the official website java.com, go to it, click on the big red button "Download Java for free".

After downloading boot file, launch it. In the window that opens, click "Install".

Even if you have the old version installed, everything will be reinstalled to the new one.

When the installation is finished, you can click "Close".

By the way, you can immediately check this same version, for this you do not need to click on this button, but click on the link just below: "Is Java software installed on my computer?"

To be sure of installed application, go to "Start" - "Control Panel". The Java icon "says" that it is on your computer.

As a second option, how to update Java, I can suggest the following. We go to the "Start" menu, "Control Panel", and then click on the Java icon, which is shown in the screenshot above. A small window will open, its functionality may depend on the installed version of the program, but the general meaning of what is required of you is simple: we find in the settings the function (tab) responsible for updates.

Most likely, you have to go to the "Update" tab. At the bottom of the window, click Update Now.

Since I have latest version, I will not be able to show which windows you will have, but I think you will understand, since everything there is on an intuitive level.

Updating Java will have to close browsers, so close all before updating. open browsers... If you don't, the app will terminate them on its own.

Sometimes, you have to restart your computer for the application to work. But this happens on very rare occasions. If it doesn't start when you open the site, then you know what to do.

How to check Java version

If you need to know which version of Java is installed on your computer in this moment, go to the "General" tab and click "About ...".

A window will open and the version will be written in the first line.

And I have everything for today.

Sun, 04/17/2016 - 20:48

Some programs, and not only web-oriented applications, but also full-fledged desktop programs require a virtual machine for their work JAVA to be installed on your computer. In addition to virtual machine the program may need other modules as well.

Important for the performance of programs, and in particular the newest, is version installed on your computer. And in order to find out whether this or that application will work on your computer, you need to find out the current version of JAVA installed on your PC or whether JAVA generally. This can be done as follows.

First of all, you need to go to the "Control Panel". To do this, go to Start / Control Panel. Then look for the JAVA icon in the panel.

Then, click on it right click mice. We have a system settings window JAVA... In it, you need to click on the button "About", which is located on the right.

Then a small modal window, which will display information about the version, update (Update) and build of this assembly, which is currently running on your computer.

You can also view the JAVA version by going to the "Add / Remove Programs" section in the same control panel.

True, this is already insanity in a sense. In addition, in this way you will not be able to find out in detail about the build and assembly of the version, but only about the update.

There is another option to check the version through the official website JAVA but it is not universal as it only works with certain browsers ( Firefox and IE).

For the correct display of web pages in the browser, you need to update Java to the latest version. Applications are developed using this technology. Thanks to it, you can play games, chat online, watch interactive maps and perform other actions.

Java update from official site

The first step is to check which version of the application is installed on your computer. To do this, go to the official website at java.com/ru/download/installed8.jsp and click the corresponding button.

Google Chrome does not support NPAPI modules. Therefore, please use another browser such as Firefox or Internet Explorer.

After a while, a message will appear in the browser, from which you can find out the current version of the program. If it is out of date, you will be prompted to update it.

The following figure shows what the usage message looks like current version, - in this case nothing needs to be installed.

If Java is out of date, you will be prompted to update it.

When the installer has downloaded to your computer, launch it and follow the further instructions.

How to install the latest version via Java Control Panel on Windows

Consider a setup in an operating room Windows system 7. Go to Start - Control Panel - Programs - Start Java.

The Control Panel will open, activate the Update tab. Check the box next to Check for Updates Automatically and click the Update Now button.

Java won't install - what to do?

Below are the common errors that users encounter.

In Google Chrome

If you are trying to install Java in this browser, then change it to another one. Because Chrome does not support NPAPI modules and does not run Java content.

Error 1603: The update did not complete

This is a known issue, the cause of which has not yet been found at the time of this writing, at least as stated on the official website.

There are two ways to try to solve this problem.

Restart your computer before installing Java.

If you see error 1603, restart the system.
Download and install the offline installer from this link - java.com/ru/download/windows_offline.jsp
In the dialog box, click "Save" and load setup file to a convenient place, such as your desktop.
Run the downloaded file and start the installation.

If the problem persists, uninstall the old one, restart the computer, and proceed to install the new version.

You can get rid of an outdated application using the uninstaller program - java.com/ru/download/uninstallapplet.jsp

Also, you can delete Java manually. The procedure is the same as with other programs.

Right click on the bottom left of the screen and through context menu call the "Control Panel".
Select "Uninstall a program".
Highlight Java and click Remove.
Confirm the action with the "Yes" button.

Open "Start"
Go to "Control Panel"
Select the "Programs" section
Go to "Programs and Features"
Highlight the application and click Uninstall.

Go to "Start"
Open "Control Panel"
Click on "Add or Remove Programs"
Select the application and click the "Uninstall" button.

Disable content in Java Control Panel before installing a new version.

Upload error: file corrupt, MSI corrupted, 1305, 2755, 1606, 1618, 25025

The error message may show on Windows XP / 7/8/10. It occurs during installation of the distribution kit from the official site java.com. This means the installation is incomplete.

Symptoms of this error are codes: MSI is corrupted, java_sp.dll is corrupted, 25025, 2755, 2753, 2352, 1788, 1744, 1722, 1643, 1624, 1618, 1606, 1601, 1600, 1335, 1327, 1324, 1311, 1305 , 1035.

Download and run the Microsoft Fix it utility - support.microsoft.com/en-us/mats/program_install_and_uninstall/ru
She was discussed in another article:
Download and install the package - java.com/ru/download/windows_offline.jsp

The corrupted MSI error occurs in Windows XP. To fix it, upgrade your operating system to SP3.

Error 1618, Object already exists, Key in specified state is invalid

Application is blocking security settings on the computer

Starting with Java 7 Update 51, the following errors appear when trying to launch applications:

A required permission manifest attribute is missing in the main jar file.
The Application-Name manifest attribute is missing.
Applications are blocked by security settings.

These errors are associated with improved security, which makes the user's system more resistant to external exploits. Such applications are blocked because they do not comply with the security policy.

To solve this problem, you need to contact the software developers and inform them about the error.

As a workaround, the Exception Site List feature can be used to run programs that fail security checks. To do this, open the Control Panel and go to the Security tab. Add the URLs of the blocked applications to the Exception Site List.

You can familiarize yourself with the implementation of this solution in the article: It told how to run online application Screenr in Google browser Chrome.

Windows Installer Package Error 1723

Installation aborts and displays error 1723:

It is related to the InstallShield module and indicates a failed installation.

Remove the unsuccessfully installed Java using the uninstaller or manually, as described in more detail above.
Download and install the offline installer for Windows - java.com/ru/download/windows_offline.jsp

Why do the messages “Your version is not secure”, “Outdated version” or “Update required” appear?

Java includes a notification feature for deprecations, known vulnerabilities, and downloadable bug fixes.

Browser Chrome versions 42 and later. V Chrome browser since version 42 (released April 2015) disabled standard way support for plug-ins.

Downloading and installing Java

Use the package to install Java offline (Windows only)

Package for installation in offline often succeeds even when there are problems with the interactive installation package. The offline installation package file takes up a lot of space and takes longer to download than the online one.
»Download offline installer for Windows

Remove all broken Java installations

Remove previous non-working Java installations before trying the installation again.
»Uninstall Java for Windows
»Uninstall Java for Mac

Temporarily disable firewall or antivirus clients

An active firewall or antivirus software can prevent Java from installing correctly. Remember to re-enable your firewall or antivirus software after successfully completing the Java installation.

Why am I getting a message about corrupted files during Java installation?

This message is most often displayed on Windows XP. The problem can be resolved by running the Microsoft Fix it utility and using the standalone installer. For more information, see the InstallShield Frequently Asked Questions page.

You can check your Java installation by following the instructions in the section below.

Using Java

After you have determined that the Java module is correctly installed, try the following steps to help launch a specific Java application.

Restart your browser after installing Java to activate the new version

If you are still prompted to update after installing the latest Java version, restart your browser. Close all browser windows, then open any web page that requires Java. In most cases, when starting a new browser session, the latest installed Java version should be activated.
Note... If you are still prompted to update, try restarting your computer. A computer restart may be required to register the newly installed Java plug-in.

Permission to execute Java when issuing a request in a browser

Browsers ask the user for permission to run the Java plug-in in the browser. The text of the messages may differ depending on the browser.
»Allow the Java Plug-in to Run in the Browser

Make sure the Java plug-in is enabled in your browser

By default, the browser can disable the Java plug-in and related add-ons. You may need to configure your browser and enable the Java plugin.
»Enabling the Java plug-in in the browser

Make sure Java module is enabled in Java Control Panel

If the Java module is not allowed in the Java Control Panel, launch Java applications in any browser will be impossible.
»Allow Java content in the browser using the Java Control Panel

Configure security settings

Make sure the Java security level does not interfere with the launch of the application. The default security level can restrict the ability to run applications that pose a risk to your computer.
»Configuring Security Level Settings in the Java Control Panel

How do I execute applications blocked by security settings?

Starting with Java 7 Update 51, the Exception Site List function has been added. By adding the application URL to the exclusion list, users can run RIA applications that would normally fail security checks.
»Configuring the list of exclusion sites

Why can't I print coupons or shipping labels?

Some Java applications are not yet compliant with the new Java security standards. As a result, such applications are blocked and printing becomes impossible. Contact the developer of the website or application and let them know about the problem you are experiencing.
»Frequently asked questions about printing problems

Clear cache (temporary files) Java

Sometimes a corrupted file in the Java cache can prevent an application from starting. You can delete temporary files loaded by Java module as Java will load them updated versions again.
»Clearing Java Cache

Checking Java Antivirus and Firewall Settings

Users using antivirus security apps and settings firewall should check for scopes to configure pluggable Java modules, as well as the ability to add trusted sites.

Check proxy settings

Check if the proxy server settings are correct if necessary for the configuration of the Internet.
»Configuring a proxy server using the Java Control Panel

Removing JavaFX Offline Installations in Firefox (Windows)

Conflict between Java version 7u10 and above and previous standalone JavaFX installations may cause Firefox to be unrecognizable installed versions Java.
»See Firefox troubleshooting section

Java test

Make sure Java is enabled in your browser

Immediately after the Java installation is complete, you can check if Java is enabled in your browser. Java execution may have been disabled or blocked in the browser. The steps to enable Java execution depend on the browser you are using.
»Checking the possibility of running Java in the browser

Removing obsolete Java versions

Remove all previous Java versions to reduce security risks

Using previous versions of Java installed on your computer that are no longer supported is a serious security risk. Removing previous versions of Java will ensure that Java applications run with the latest security and performance updates.
»

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How to check and download the latest updates

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