The Java setup wizard window will open. Click the Install button.
After downloading, check the file size (around 50–60 MB for JRE 1.8.0 32-bit). If it’s below 1 MB, it’s likely a fake installer. Also, verify the digital signature (right-click → Properties → Digital Signatures tab → Oracle or Eclipse Foundation). Java Runtime Environment 1.8 0 Download 32-bit Windows
: If you need a specific older update of 1.8.0 (e.g., 8u202 or earlier), you must use the Oracle Java SE 8 Archive The Java setup wizard window will open
| | 32-bit JRE | 64-bit JRE | | :--- | :--- | :--- | | Maximum Memory (Heap) | Up to 1.5-1.8 GB on Windows | Several terabytes (practically unlimited) | | Pointer Size | 4 bytes (more memory efficient) | 8 bytes (higher memory overhead) | | Performance | Potentially faster for small applications | Better for large-scale, multi-threaded applications | | Compatibility | Runs on 32-bit and 64-bit operating systems | Only runs on 64-bit operating systems | If it’s below 1 MB, it’s likely a fake installer
As of 2025, all major browsers (Chrome, Edge, Firefox) have removed NPAPI support, meaning you anymore. If you need to run an applet, you will need an older version of Internet Explorer with security configs or a dedicated Java applet runner like CheerpJ.
After a progress bar, you’ll see “Java successfully installed.” Click Close .