It sounds like you're getting ready to install Java Development Kit (JDK) 17.0.17 on a 64-bit Windows machine. This specific version is a security and maintenance update released on October 21, 2025.

To use Java from any command prompt, you should set your environment variables:

• Usage: This license permits the use of Oracle JDK at no cost for:

  Method A: Using System Settings (GUI)

  1. Press Win + X → System → Advanced system settings → Environment Variables.
  2. Under System variables, click New for JAVA_HOME: