Content

• Steps
• Method 1 of 2: Reinstall Java
• Method 2 of 2: Other Ways to Fix Java
• Warnings

Java is a technology that allows you to play games and watch videos on your computer. You are having problems with Java if you see error messages when you try to run a program or open a website written in JavaScript (the programming language used for Java applications). The most reliable way to fix Java is to reinstall Java, although there are many other methods and tools to fix Java.

Steps

Method 1 of 2: Reinstall Java

1. 1 Click "Start" - "Control Panel".
2. 2 Click "Uninstall a program".
3. 3 In the list of programs, find and highlight Java, and then click Uninstall. This will uninstall Java.
4. 4 Download the new Java version for free from the Java website. Follow the instructions on the screen to install Java.

Method 2 of 2: Other Ways to Fix Java

1. 1 If you do not want to uninstall the installed version of Java, use tools such as Microsoft Windows Installer Cleanup Utility and Uniblue Registry Booster to fix Java; they detect Java errors and fix them.
2. 2 Make sure that no software installed on your computer is interfering with Java as it should. Some antivirus programs refer to Java as software that threatens the security of your system and therefore blocks Java from working.
3. 3 Use the Java version that matches the software you are trying to run. You will not be able to run the program if it requires a different Java version than the version installed on your computer. In this case, you need to change the program settings (so that it supports your Java version) or install a different Java version (older or newer).
4. 4 If the above methods do not help, reinstall the operating system. To do this, you need to format hard, which will delete all data, including Java. After reinstalling the system, reinstall Java.

Warnings

• Once you uninstall Java, you cannot restore it. In this case, install Java from scratch.
• Do not turn off your computer while installing or uninstalling Java. This can lead to incomplete installation or damage to files that are difficult to detect and remove.
• Do not run Java programs if you downloaded them from an untrusted source. Such programs can break Java (corruption of files stored on the computer) and block certain files necessary for the stable operation of Java.