The most "native" way to handle this version is through the or On-Premise console. Create a Software Installation Task .
: Automatically activate the product during installation using a license key. ACTIVATION_DATA=key:XXXX-XXXX-XXXX-XXXX-XXXX EN ESET Endpoint Security 9.1.2063.0 EN Silent ...
Ensure any previous third-party antivirus is removed. While ESET has a built-in "Remover," using a dedicated task for uninstallation prior to the silent install yields the highest success rate. The most "native" way to handle this version