This article was created to inform customers that the Windows installer flag --mode silent has been deprecated and replaced with --mode unattended.
--mode silent
--mode unattended
Customers using automated or scripted installations must update their commands to avoid installation failures or interactive prompts.
For example, if the command used to install Appian is similar to the following:
setupWin_appian-#.#.#.#.exe --mode silent --prefix <APPIAN_HOME>
This will need to updated to something similar to the following:
setupWin_appian-#.#.#.#.exe --mode unattended --prefix <APPIAN_HOME>
This article applies to all self-managed versions of Appian on Windows.
Last Reviewed: December 2025