Ensure you have administrative privileges on the target machine. For silent installs, the installer must be local or on a reachable network share.
ActivInspire-2.18.21.exe /S /v/qn
"%ProgramFiles(x86)%\Promethean\ActivInspire\uninstall.exe" /S activinspire silent install exclusive
Open a command prompt and run the installer with the /a switch (e.g., ActivInspire_Setup.exe /a ). Ensure you have administrative privileges on the target
HKLM\SOFTWARE\Promethean\Licensing\ActivInspire\LicenseKey = "your-license-key" activinspire silent install exclusive