Copy the entire installation package (which includes the extensions folder) onto a secure USB drive or a dedicated internal network share that the air-gapped machine can reach. Phase 2: Configuring the Local Installation Service
If you can’t simply hit "update" within the software, here is the step-by-step guide to managing an Altium extension offline installation. Phase 1: Preparing the Offline Installation Files altium extension offline install
Click the (download icon) next to the specific extension you need (e.g., Draftsman or KiCad Importer ). Copy the entire installation package (which includes the
Since your target machine has no internet access, you must first use a computer with an active connection to gather the necessary files. Since your target machine has no internet access,
Ensure you have the main offline installer for your specific version of Altium Designer. Extensions are often version-specific.
Log in to the Altium Downloads page. Instead of the standard web installer, look for the Offline Installation Solution .
A progress bar will appear. Once finished, Altium will prompt you to restart the application to finalize the integration. Troubleshooting Common Issues