Silent-mode installation allows you to define an installation configuration and then use that configuration to install without any user interaction. This article will cover all the important aspects of Silent Installation of Bentley OpenBuildings Designer CONNECT Edition.
(note that Update 7 filenames are used in this example)
Noted below:
For uninstalling the Bentley OpenBuildings Designer CONNECT Edition, in the command prompt paste the below path/text & hit enter.
"C:\OBD\obd100700105en_updt7.exe" /uninstall -Quiet
https://communities.bentley.com/products/building/building_analysis___design/w/building_analysis_and_design__wiki/42268/installing-openbuildings-designer