To ensure a secure and stable installation, use these official methods: EndNote downloads
While you requested a "Portable zip" for Build 16272, it is important to note that of EndNote. Most "portable" versions found online are unauthorized third-party modifications, which can pose security risks or lead to software instability. Official Download & Installation Options Download End Note v20 Build 16272 Portable zip
You can find the official installers for through the Clarivate Support Center or the official EndNote website . To ensure a secure and stable installation, use