To download JDK 15 (Java Development Kit 15) for Windows 7, follow these steps:

1. Visit the official Oracle JDK download page: https://www.oracle.com/java/technologies/javase-downloads.html

2. Scroll down to the “Oracle JDK” section. You’ll see a list of available JDK versions. Look for “Oracle JDK 15” (or a later version if available).

3. Accept the “Oracle Technology Network License Agreement for Oracle Java SE” if prompted.

4. Locate the download link for the Windows platform. It should be labeled something like “Windows x64 Installer” for 64-bit Windows or “Windows x86 Installer” for 32-bit Windows.

5. Click the download link to start downloading the JDK 15 installer for Windows.

6. Once the download is complete, locate the installer file (it typically has a .exe extension) and double-click it to run the installer.

7. Follow the installation wizard’s instructions to install JDK 15 on your Windows 7 machine. You can choose the installation directory and other options during the installation process.