The simplest “portable” solution is to use the in a portable web browser .
Portable apps don’t mess with Windows Registry keys, keeping your OS clean and fast. Final Verdict proton mail desktop app portable
(Optional) Use the browser's "Install as App" (PWA) feature. This creates a shortcut that looks and feels exactly like a desktop app but runs entirely from the portable browser folder. 3. Using ElectronMail (The Community Favorite) The simplest “portable” solution is to use the