Hello! This a common problem now, since windows 10 doesn't support securom. Securom is a protection program that came with latest sims 2 eps and with ultimate collection. I have that problem too, and it's getting really frustrating to build and decorate houses :/.
I wish EA would remove Securom from the game files. Otherwise, users who want to remove securom on their own, might do some damage to their pc, since it requires advanced computer skills to do it. I hope you can figure out something!
