I have 2 computers using Windows 7 home, one is a laptop with a full version of home and the other is a HP tower using the type of Windows 7 home that was supplied with it when it was new. Both versions are about the same age. But the laptop had a larger hard drive fitter and was first bought with Vista on it, but I put the full version on it not the update version.
When I switch the laptop off for the night it just does its thing and closes down without any fuss other than when an update is required and then it will take a little longer. When switching the tower for about the last two or three weeks, it has taken ages every night. It always has a warning on the screen about not un-plugging or removing the power until the update is finished.
Why should one computer be any different to the other when both are using the same operating system