Why java is not installed on the computer. Installation using terminal and package manager. Java is not installed on Windows

Java software is used as a platform for many Windows programs and is the accepted standard for developing various applications and games. It provides a lot of opportunities for the programmer, and users have to pay for this in the form of a need. mandatory installation Java libraries or even Java Virtual Machine on a computer or laptop. And it would be fine if everything went “without a hitch”, but very often the JAVA software is not installed and an installation error is generated. What to do and how to install it successfully on a Windows system? Here are some tips.

Manual installation of Java

Please note: The update number will increase from the time this guide was created.

To do this, open a terminal and type. This will require confirmation. Now you will see the following screen.

And it earned this place with a mix of renewal practices software, which are among the most aggressive and cynical in the industry.

1. Usually, when downloading software from the official site, you download a special web installer, which will then itself pull the necessary libraries through an Internet connection. But here it can include an antivirus or firewall in the game, which can regard this as viral activity and block Internet access to the installation application. Therefore, try downloading a full-fledged offline installer from here - link, and then try installing Java through it. Do not be surprised that it weighs about 50 megabytes, while the web installer is almost 50 times smaller. This is fine.

But of course you can just clear that checkbox and continue and move on.

This dialog box is not telling the truth. You can also check your browser settings to confirm that no changes have been made to your settings. You may conclude that you dodged a bullet and that no unwanted software was installed. The only indication that this installer is working is a brief flash of the mouse pointer.

2. If you already had an older version of Java before, try uninstalling it and installing it again through the Windows Control Panel.

3. Check your Windows 7, 8 or 10 operating system with a good antivirus program. For example, DrWeb CureIt or kaspersky antivirus. Often malware They disguise themselves as system libraries and then prevent them from being updated.

But the expert spyware Ben Edelman points out that at the beginning of the last decade, this trick was common for companies installing deceptive software.

You must make this change manually. The good news is that browser makers collectively make it difficult to install and enable toolbars in a way that they are unintentionally installed.

4. Clean up the Windows registry with special utility. For example, CCleaner.

Registry errors are often the reason why Java software is not installed on a computer.

5. Try to clean system folders:
C:\Program Files\Java
and
C:\ProgramFiles\Common Files\Java
Sometimes files left over from older versions cause Java installation to fail.

It does this by adding its own messages along with system messages.

And to add trauma to insult, the updater takes its own sweet time by notifying you when available. important updates for the security system. As the text in the update dialog appears, you can wait 7 to 30 days after an update is available before you know it. And then you are forced to initiate the update yourself, avoiding unnecessary software along the way.

6. Try to update Windows components using Update Center. It may happen that the error Java installations Runtime Environment arises even from outdated version Internet Explorer.

7. Download the fix file with fixes and apply the changes in the registry.

Modern users of computers running on the Windows family of operating systems can enjoy the full range of Java technology capabilities (in Russian it sounds like Java). Current operating systems today are Windows XP, 7, 8 and 10, as well as server Microsoft systems. Actual Java versions today: 7 and 8.

If you must run it, consider using it to keep it updated in a timely manner without being annoyed by potentially unwanted software. But for those not aware of such options, the upgrade process should be fast, accurate, and transparent. To provide the best possible assistance, our support pages display information specific to the browser and operating system you are currently using. If you need instructions for a school computer, or if you are an employee trying to find information for a different browser and operating system, please use the drop-down lists below to view this information.

Why does an Internet user need to download and install Java

Today, it is almost impossible to imagine working on the Internet without Java, since it is something more than a programming language of the same name. Thanks to him, they function effectively mobile phones and most of the Internet applications: games, interactive maps, banking systems, distance courses, and so on. The developer recommends installing only the latest version of the program. This way you will get the most secure solution.

Check if this configuration is supported. View the page to see which operating systems are supported. View the page to see which browsers are supported. You want to enable the plugin. If you've ever asked to "disable plugins for faster browsing", don't. The steps for versions 8, 9 and 11 will be the same, but appearance screens may vary slightly.

You should then receive the following download prompt.

The best download option is from the official website

What is Java

This is a modular complex of interrelated programs designed for different categories of users. To be precise, Java as a technology has several components:

programming language and software development kit;
platform for computing on computers of any purpose and running any operating system.

The platform includes, in addition to standard components and technology modules, also programming environment in a programming language called the Java Development Kit, or (JDK - Java Developer Kit). Most ordinary users can only install execution environment Java Runtime Environment (JRE). The basis of which is the Java Virtual Machine (JVM - virtual machine Java) and a set of provided libraries and components of its environment (classes). All of them perform the work of running and maintaining programs written in the mentioned programming language.

What to do if Java is not installed or does not work correctly

Once the file download is complete, the installation will start automatically.

The installation may take several minutes to fully boot your system. When the installation is complete, you will be prompted with the following message.

In the new Trusted Sites window, uncheck "Require server verification for all sites in this zone".

Installing the Java Runtime Environment and Its Features on Windows

Oracle, the current owner of the technology and its components, is constantly improving the software. From her official resource, she offers absolutely free download the latest version of the Java package for all common operating systems, and primarily for Windows. Here the user can select two types of download: interactive and autonomous modes. The current package only has latest version so try not to use old version to the detriment of security and decrease in productivity of programs.

If you encounter this issue, you need to set an environment variable to point to the correct location. One of the first screens you see is just the beginning of wizards. Review the "Error" message, then click "Back", then click "Next" and "Next" again and it will work.

Java is not installed on Windows

If we get past this little mistake, it will be clear, smooth! Then you will see this screen if you reach the end. Using registry cleaner software automates the search for invalid registry entries and missing files, as well as broken links in the registry. The best part is that fixing registry errors can greatly improve the speed and performance of your system.

Before installation, the operating system is configured so that the installation of the runtime environment does not interfere with the active protection of the OS. This is about firewalls and firewalls antivirus programs they need to be disabled. After the installation is complete, run these utilities.

Java installation interactively launches for execution directly from the Internet a special executable file IFTW (Install From The Web). You must be online until the end of the installation, otherwise it will be terminated. Method offline download easier, downloaded from the server .exe file, can be launched and tested at any time, including without the Internet. All subsequent Java configuration happens automatically, including the constant readiness for updating.

We cannot guarantee that any problems caused by incorrect use of the Registry Editor can be resolved. Use Registry Editor at your own risk. Since there is a high chance that you will damage the system, the following steps to manually edit the registry are not covered in this article. If you would like to learn more about how to manually edit the registry, please follow the links below.

Network installation

We are not responsible for the results of the actions described in the links below - do it at your own risk. Gallery start. The following restrictions apply. Read also this guide. Decision. Create and install a new username test. It is recommended that you disable your Internet firewall before proceeding with the online installation. To disable the Internet Firewall, please refer to the Internet Firewall manual.

Selecting the type of boot and OS bitness

The current version is 8u66, and in order to install it on Windows, you will need to meet a few general conditions:

Your Account must be configured with Windows Administrator rights;
One of the latest browser versions is required (Internet Explorer, Firefox, Chrome, Opera).

The Java package is distributed for 32 and 64 bit systems and browsers. For the uninitiated, we point out: the bit depth is otherwise signed by the English word bit, for example, XP Home has only 32 bits of bit depth. Choose the version of the package that suits the browser. Especially it concerns manual installation, which specifically offers two download options for Windows. The only exception is server systems, which will only require a 64 bit OS version to boot, such as Windows Server 2008 R2.

In the absence technical support on the part of the official developer of Windows XP, the new eighth version of Java may not work correctly. For use on older OS releases Windows browsers both digits, both versions of Java should be installed to avoid version conflicts. The fact is that in this case, during installation, one common module to connect.

Java Software Package Installer window

Java and Windows 10

Update 51 of the Java 8 release supports Windows 10. Unfortunately, the new browser edge included in version 10 does not support Java technology, for this reason you will have to use other browsers. operating room Windows system 10 contains a convenient search system (magnifying glass in the lower left corner of the screen). The easiest way to call the control panel is through it by typing in the search bar " Set up Java».

Bit depth check

In browsers of all types and editions, there is a main menu item "Help" (Help) or "About". They directly indicate the bit depth of the browser, and if it is not there, then consider your version as 32 bit.

Experts carefully advise check browser bitness, especially for Internet Explorer. Even in the standard delivery of 64-bit Windows operating systems from version XP to version 7, they have the same 32-bit browser by default. Another type is also included, but it is optionally installed by the user. Be careful, such a browser does not guarantee the correct display of all modern sites and web applications.

If your PC is large enough random access memory(from 4GB or more), use only a 64-bit browser, as it is able to use twice the amount of computer RAM. This means only one thing: your programs loaded in the current session of the OS, especially games, will work as quickly as possible.

Checking the installation

After all installation procedures, regardless of the download option, you may need to restart the browser running at that time. This procedure is necessary to enable Java module from the Oracle server side. Remember, installation only latest version will ensure the safety of the browser.

What to do if Java is not installed or does not work correctly

The website of the Java developer company has a page http://www.java.com/ru/download/help/ which provides a description of the solutions to the main 15 problems of installing, operating and updating the package.

For example, XP users, of which there are still many, run the risk of file corruption. Its solution was implemented by Microsoft itself, which released a special system utility program Microsoft Fix it(supports XP, 7 and 8 versions). After applying the utility, which can be downloaded from the official Microsoft website, reinstalling Java in offline will happen with recovered files.