I need to be able to build an installation for a Unity standalone windows app (not UWP) and have windows not complain about the installer exe (inno setup built) or the installed app. But I think I have to certify/sign it to do this? Has anyone a link to a reference on this or has done it?
You can use SignTool for this: https://docs.microsoft.com/en-us/windows/win32/seccrypto/signtool However, you need to have a valid certificate for it.