CCleaner auto-start (auto-run) when the computer starts is a great feature. But in my case it takes a long time to clean when the computer boots up, and consequently I have to wait to turn on my web-browser since I am waiting for CCleaner to finish. So I think it would be a great new feature if there is an option to turn on CCleaner when I shut down my computer. This means auto-start (auto-run) should wait until all the web-browsers are closed by the system, and then right before the system shutdown, the auto-start (auto-run) should kick in.