I always seem to have some kind of problem when it comes to updates or expansions for The Sims 4. This is such a pain. I love this game but have very little time to play.
Hey, to start with please ensure that your Origin is running as an administrator. Also, please ensure that your anti-virus/firewall software aren't restricting Origin.
A Clean Boot may help: http://help.ea.com/uk/article/how-to-clean-boot-your-pc/