Open a Command Prompt or terminal and type java -version . The output should display the JDK version: java version "1.7.0_80" .
Locate the downloaded file (jdk-7u80-nb-8_0_2-windows-x64.exe) and double-click to run the installer. jdk-7u80-nb-8_0_2-windows-x64.exe
To run this legacy bundle effectively, your system should meet these minimum specifications: Requirement Recommended Specification Windows 7, 8, or 10 (64-bit) Processor Dual-Core Intel (64-bit) Memory (RAM) Minimum 1 GB Disk Space Approximately 700 MB for installation Core Features Open a Command Prompt or terminal and type java -version