You can download JDK 8 (Java Development Kit 8) for Windows from the official Oracle website. However, please note that starting from JDK 11, Oracle changed its distribution policy, and Oracle JDK is no longer free for commercial use. For older versions like JDK 8, Oracle provides the binaries for free, but you should review and understand the licensing terms for your specific use case.

Here are the steps to download and install JDK 8 on Windows:

1. Visit the Oracle JDK download page for JDK 8 at the following URL: Oracle JDK 8 Downloads

2. Scroll down to the “Oracle JDK” section, and under “Java SE Development Kit 8u281” (or the latest update available), select the appropriate version for your Windows system (either 32-bit or 64-bit). Download the installer executable (e.g., jdk-8u281-windows-x64.exe for 64-bit Windows).

3. Once the download is complete, run the installer executable.

4. Follow the installation wizard’s instructions. You can generally accept the default installation settings, but you may customize the installation directory if needed.

5. After installation is complete, you should have JDK 8 installed on your Windows machine.

To verify the installation and set up environment variables:

1. Open a Command Prompt window.

2. Run the following command to check the installed Java version:

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   java -version

3. Run the following command to check the installed Java Compiler (javac) version:

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   javac -version

4. If these commands display the version information for JDK 8, then your installation was successful.

Remember to review the licensing terms on the Oracle website to ensure compliance with their policies, especially if you plan to use JDK 8 in a commercial environment.