How to cancel the prompt when IE9 download is complete

There are no similar options in IE9, so how can you cancel this download hint? Here's a solution to this problem:

We can also do this by changing the registry, by typing "Regedit" in the Start menu search to open the registry, and then finding the following key values in sequence

Hkey_current_usersoftwaremicrosoftinternet Explorermain

In the right window, locate the Notifydownloadcomplete key value, double-click to edit it, and change its value to No. Similarly, if you want to restore the IE9 download prompt, simply change the yes value back.