: Go to the Proton VPN Download page .
: Click "Download for Windows" to get the latest .exe file. Download Proton VPN for zip
For most users, the standard installer is the safest and easiest method: : Go to the Proton VPN Download page
: Run the .exe file and follow the setup wizard instructions. Download Proton VPN for zip
: You can download the source code for various versions (e.g., version 4.3.9) in .zip format from SourceForge .