Extract the ZIP file directly to your USB drive, e.g., F:\FlashPlayer\.
Inside, you will see ruffle.exe.
Navigate to github.com/ruffle-rs/ruffle/releases/latest.
Scroll to "Assets."
Download ruffle-nightly-windows-x86_64-portable.zip.
While Ruffle is the modern recommendation, some users specifically look for the original Adobe binaries to ensure 100% compatibility with older, complex ActionScript 3.0 content that emulators might struggle with.
On GitHub, you will often find repositories labeled "Flash Player Portable" or "Clean Flash Player". These usually consist of:
The GitHub Role: Since Adobe removed official downloads, GitHub developers often host archives of these standalone projectors to ensure they aren't lost to time.