Instead of the "Installer," look for the button to get the compressed Archive file. Method B: PortableApps.com
The Eclipse Foundation doesn't label a specific file as "Portable," but their (Windows) or .tar.gz (Linux/macOS) packages are inherently portable. Go to the Eclipse Packages Downloads page . how to download eclipse portable
If running from a USB drive, use a USB 3.0 or 3.1 port. Running an IDE over USB 2.0 can lead to slow build times. Instead of the "Installer," look for the button
When prompted for a workspace, use the "Browse" button to select the workspace folder you just created. Check the box "Use this as the default and do not ask again." Step 4: Making it Truly Portable (The eclipse.ini Trick) Instead of the "Installer