Java Help Center

Java Help Center
Welcome to the Java.com Help Center, which describes solutions for issues you might encounter when downloading and installing Java on your system. Each month, consumers request millions of Java downloads from our site.

As users install Java for diverse third-party applications and applets across different platforms, we track the most frequently reported issues and error codes that they send us. Find their corresponding answers and line-by-line technical instructions by using the Help Resources and FAQs menu. You can also narrow your search further by selecting the Platform and Java Version filter options with the drop-down menus.

Top 15 Java Issues
This section is updated frequently, and offers links to our most requested information about installing, and using Java as well as most viewed FAQs.
Error: The wizard was interrupted before Java(TM) 6 update could be completely installed.
Error: Old file not found
Error 1723. There is a problem with this Windows installer package
How do I resolve problems running Pogo games?
Virus found in the Java cache directory
Download errors: 1305, 2755, 1606
What is Mcafee security scan?
Which version of Java should I download for my Windows 64-bit operating system?
Why upgrade to Java 6?
Can Java downloads be infected with a virus?
Why should I remove older versions of Java from my system?
Error 1721: There is a problem with this Windows Installer Package
What is JavaScript and how is it different from Java Technology?
How do I test whether Java is working on my computer?
Java and Google Chrome Browser
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Terminology: Java is the general term used to denote the software and its components, which include 'Java Runtime Environment' (JRE), and 'Java Virtual Machine' (JVM). When error messages specifically include terms such as JRE and JVM, we retain them.

Versions: The Help section contains information on three versions of Java.

Current Version Name Replaces Old Name Other Legacy Formats
Java 6
Java 6 Update x JRE 6.0
JRE 1.6 1.6.0_0x
Java 5
Java 5 Update x Java 2 SE 5
JRE 1.5 1.5.0_0x
Java 1.4 JRE 1.4