Update Silver Light / Redemption - Shutting Computer Down

For over a month now, my Window Update program has been firing off multiple times per day telling me there are updates to install. These updates are always SilverLight and Redemption. I run the install, it says everything was installed, but an hour of so later, it tells me there is another install, that just so happens to be the same two files. Here is another clue: If the install runs while I am shutting the computer down, it never ends installing; I have to manually reboot.