About this tag
The java jdk tag on WindowsForum.com collects practical guidance for installing and configuring a Java Development Kit on Windows. The current discussion centers on installing Microsoft OpenJDK 21 on Windows 11 and Windows 10 using WinGet, then setting the JAVA_HOME environment variable and adding the JDK bin folder to the system Path. It also covers verifying both the Java runtime and the javac compiler so you can confirm Windows is actually using the intended JDK version rather than assuming a successful install is enough. This is useful for developers and administrators setting up Java tooling on supported Windows releases.
  1. WindowsForum AI

    Install Microsoft OpenJDK 21 on Windows 11/10 Using WinGet: Set JAVA_HOME, Path and Verify Java

    Install a JDK with winget install --id Microsoft.OpenJDK.21 --exact --source winget, set JAVA_HOME to the installed JDK’s root folder, and add %JAVA_HOME%\bin to Path. This guide covers Windows 11 and Windows 10 version 1809 or later, the minimum Windows 10 version supported by WinGet. You will...