Download Temurin JDK for Windows PC v25.0.4.1+1 for Windows PC
Temurin JDK 25.0.4.1+1 is Eclipse Adoptium's free, TCK-tested OpenJDK 25 LTS build for Windows x64 - Java for development and production, no licence fees.
Technical Specifications & System Requirements
Software notes
Features
- Temurin is completely free for development and commercial production use under the GPL with Classpath Exception, so teams avoid the licence reviews and subscription questions that surround Oracle's JDK downloads.
- Every Adoptium release is verified against the Java Technology Compatibility Kit and the AQAvit test suite, meaning this 25.0.4.1+1 build is a certified-compatible Java 25, not an untested source snapshot.
- Java 25 is a long-term-support release that Adoptium plans to update until at least September 2031, so installing it gives years of free quarterly security patches instead of a six-month upgrade treadmill.
- The Windows MSI can set JAVA_HOME and add the JDK to PATH during installation, eliminating the manual environment-variable editing that causes most 'java is not recognized' and build-tool failures for beginners.
- Temurin is built reproducibly by the vendor-neutral Eclipse Foundation and is the JDK bundled or recommended by countless tools, base images, and courses, so help and documentation you find online almost always applies directly.
Considerations
- Temurin provides no commercial support contract of its own, so organizations that require a vendor SLA must buy support separately from companies such as Azul or Red Hat for equivalent OpenJDK builds.
- There is no automatic updater in the Windows MSI, so staying current with quarterly security releases means noticing new versions and installing the updated MSI yourself, or using winget to upgrade.
- The installer contains only the JDK command-line tools; newcomers still need to install an IDE or editor such as IntelliJ IDEA separately and can be confused that double-clicking JAR files is not configured by default.
About & Overview: Temurin JDK for Windows PC
Eclipse Temurin is the OpenJDK distribution built by the Eclipse Adoptium project: a production-ready Java Development Kit compiled from the same OpenJDK source code as other major distributions, verified with the Java Technology Compatibility Kit (TCK) and the project's own AQAvit quality suite, and released completely free for any use, including commercial production, under the GPL with the Classpath Exception. This download is the Windows x64 MSI installer for Temurin 25 - the current long-term-support (LTS) generation of Java, with Adoptium support planned until at least September 2031 - at version 25.0.4.1+1, the latest generally available Windows build reported by the Adoptium API. The JDK contains everything needed to build and run Java software: the javac compiler, the java runtime launcher, jshell for interactive experiments, jlink and jpackage for creating trimmed runtimes and native installers, diagnostic tools such as jcmd, jmap and Java Flight Recorder, and the full Java 25 standard library with features like virtual threads, pattern matching, and structured concurrency maturing through the recent releases. The MSI can optionally set the JAVA_HOME environment variable and add the JDK's bin folder to PATH, the two steps build tools such as Maven, Gradle, and Android Studio depend on. Temurin is best for Java developers who want an LTS JDK without Oracle licensing questions, students installing Java for a course, and teams standardizing CI and production servers on a no-cost, reproducibly built distribution. A real scenario: a developer setting up a new Windows 11 laptop installs this MSI, ticks the JAVA_HOME and PATH options, opens a terminal to confirm java -version reports Temurin 25.0.4.1+1, and is building a Spring Boot project with Maven minutes later - no account, no licence audit worries, and the same JDK bits their Linux servers run.
How to Install & Verify Temurin JDK for Windows PC
Get the Temurin 25.0.4.1+1 JDK installer (OpenJDK25U-jdk_x64_windows_hotspot_25.0.4.1_1.msi) published by Eclipse Adoptium.
Double-click the MSI and accept the licence (GPLv2 with Classpath Exception). The default folder under C:\Program Files\Eclipse Adoptium is recommended.
On the custom setup screen, enable 'Set JAVA_HOME variable' and 'Add to PATH' - these are off in some configurations and build tools like Maven and Gradle need JAVA_HOME to find the JDK.
Complete the wizard. If the options were enabled, the installer registers the JDK with Windows and updates the environment variables for new terminals.
Open a new Command Prompt and run java -version and javac -version; both should report the Temurin 25.0.4.1+1 build before you start compiling.
Related Windows PC Software & Alternatives
Frequently Asked Questions & Verification Guide
Is Temurin JDK for Windows PC free and open source?
Yes. Temurin JDK for Windows PC is completely free and open-source software. You can download and use it at no cost, and its source code is publicly available.
How to set JAVA_HOME on Windows/Mac/Linux?
On Windows with this MSI, the easiest route is to enable 'Set JAVA_HOME variable' during installation. To do it manually, open 'Edit the system environment variables', create a system variable named JAVA_HOME pointing at the JDK folder (for example C:\Program Files\Eclipse Adoptium\jdk-25.0.4.1.1-hotspot), add %JAVA_HOME%\bin to PATH, then open a new terminal and check echo %JAVA_HOME% and java -version.
What is the latest Java version in 2026?
Java 25 is the current long-term-support (LTS) release and the one recommended for production; newer feature releases such as Java 26 and 27 exist but receive only about six months of updates each. This Temurin build, 25.0.4.1+1, is the latest generally available Temurin 25 release for Windows x64 reported by the Adoptium API.
How do I fix no JVM could be found after Java 8 update?
That error means a program is looking at a stale JAVA_HOME or PATH entry that still points at an old, removed JDK. Install this Temurin 25 MSI with the JAVA_HOME option enabled (or edit the variable manually to the new JDK folder), remove old Java entries from PATH, restart the affected application, and confirm java -version works in a fresh terminal.
Should I install the latest Java or an LTS release like Temurin 25?
For production servers, coursework, and most development machines, choose the LTS - Temurin 25 is supported with free updates until at least 2031, while non-LTS releases go end-of-life after roughly six months and force an upgrade. Pick a non-LTS release only when you specifically want to experiment with its newest language features.
Best way to manage multiple Java versions in 2026?
Install each JDK side by side - Temurin MSIs already install into separate versioned folders - and switch by changing JAVA_HOME, or let your IDE select the project SDK per project, which IntelliJ IDEA and Eclipse both support. On Windows, scripts or tools like Jabba can switch JAVA_HOME per terminal session when you regularly alternate between, say, Java 21 and Java 25 projects.