The product documentation does not provide instructions for a silent uninstall of the Autosys Common components on Windows:
It is possible to silently uninstall just the Agent with the .iss file provided on the ISO, but it does not remove the Common Components. There is no silent uninstall documented for the Common Components. We install the Agent, Client Utiities, docs, and the SDK at the same time.
Ideally, one silent un-nstall procedure for the Agent plus the Common Components is desired; but two separate procedures would be acceptable.