For version 9.1.2063.0, the most robust silent method is using :
. It is notably the last version of ESET's endpoint security suite that officially supports ESET Security Forum Silent Installation Commands To perform a silent installation of this version, use the utility with the (quiet, no UI) switch. The package is the preferred format for these deployments. Standard Silent Install msiexec /i ees_nt64_enu.msi /qn /norestart Silent Install with License Activation EN ESET Endpoint Security 9.1.2063.0 EN Silent ...
If you encounter issues during silent installation, check the following: For version 9
One Tuesday, a Trojan masquerading as a harmless PDF tried to slip through the mail port. A loud guard would have sounded sirens, freezing the city in panic. Vanguard 9.1 didn't even blink. He intercepted the code in the Background Standard Silent Install msiexec /i ees_nt64_enu
Add MSI logging: