How to fix Java errors

This article describes how to identify and fix Java errors on Windows PCs. The information is intended for beginning to intermediate computer users. Topics covered in this article:

• What is Java and why do I have Java errors?
• Technical resolutions for Java error

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Java is a cross-platform programming language used extensively by websites to deliver interactive content like Internet games (e.g. online Pogo games), online chat and streaming audio and video. The Java Runtime Environment (JRE) is required on your PC to run stand-alone Java applications or Java Applets (Java Plug-in software that run inside various browsers). Common causes of Java errors are usually related to certain aspects of the Java Runtime Environment, ranging from improper or outdated Java installations to Java being disabled. The rest of the article explains the top three causes of Java errors and how to fix them.

Most Java errors are generated as a result of one of the following three causes:

Cause 1: Outdated or corrupt Java Runtime Environment. You receive errors saying Java not found or not working. This indicates that your PC doesn't have Java installed or the current installation is corrupt or outdated.

Resolution: Install or re-install Java Runtime Environment. Most Java applications require your PC have the latest Java version to function properly. Click to view this resolution

Cause 2: Older Java Versions were cached or not properly removed. Even after you install the latest Java version, you can still encounter Java errors or requests for updating Java. This is because your PC and web browser are still using a previous version of Java instances. According to ORACLE - the company that develops the Java technology - keeping older versions of Java imposes serious security risks to your PC.

Resolution: Uninstall older Java versions and clear Java cache. All previous versions of Java installed on your PC need to be removed. To ensure a clean start, you should also clear the Java cache. Click to view this resolution

Cause 3: Java is not properly enabled. Installing the latest Java doesn't always guarantee that your Java environment is properly configured and thus enabled.

Resolution: Configure the Java and browser settings to ensure that Java is properly enabled. This includes two parts, involving both the browser and the Java Control Panel. Click to view this resolution

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