To download the Java Runtime Environment (JRE) 11 offline installer, you can follow these steps:

1. Visit the official Oracle JDK download page: Oracle JDK Downloads

2. Scroll down to the “Oracle JDK” section and under the “Oracle JDK 11 (LTS)” or the desired version, click the “Downloads” button.

3. You will be presented with a list of JDK distributions for various platforms. Look for the “Server JRE” section and click the “Download” button next to the “Server JRE” for your platform. The Server JRE is essentially the JRE without the development tools.

4. You may be prompted to accept the “Oracle Technology Network License Agreement for Oracle Java SE.” Review the license agreement, and if you agree, click the checkbox to accept it.

5. After accepting the license agreement, the download should start. The downloaded file will be the offline installer for the JRE.

6. Once the download is complete, locate the downloaded file on your computer and run it to install the JRE.

7. Follow the installation wizard’s instructions to complete the installation. You may be prompted to choose the installation directory and configure other settings.

8. After the installation is complete, the JRE 11 will be installed on your computer, and you can use it to run Java applications.