windows

2 articles

8 September 2026·13 min read

How to Set the JAVA_HOME Environment Variable on Windows, Linux, and macOS

Set JAVA_HOME correctly on Windows, Linux and macOS — find the JDK folder, make the variable stick across reboots, and fix the errors it causes.

Java

25 August 2026·9 min read

How to Install Java 21 (JDK 21) on Windows

Install JDK 21 on Windows 10 or 11: choosing Temurin, Corretto or Oracle, the MSI checkboxes that matter, setting JAVA_HOME and PATH, fixing a wrong version.

Java