You can download Java 7 for 64-bit systems from the Oracle website. Please note that Java 7 is an older version, and Oracle no longer provides public updates and support for it. However, if you have a specific need for Java 7, you can still find archived downloads on the Oracle Technology Network (OTN) website.

Here are the steps to download Java 7 for 64-bit systems:

1. Visit the Oracle Technology Network (OTN) website: https://www.oracle.com/java/technologies/javase-downloads.html

2. Scroll down to the “Java SE 7 Archive Downloads” section.

3. Under “Java SE Development Kit 7u”, you’ll find a list of available downloads. Look for the version that corresponds to your operating system and architecture. For a 64-bit Windows system, you’ll want to download the “Windows x64” version.

4. Accept the license agreement by clicking the checkbox.

5. Click on the download link to start the download process.

6. Once the download is complete, run the installer to install Java 7 on your 64-bit system.