, unless they are temporarily offered for free by EA (the publisher) or an authorized retailer (e.g., Epic Games Store, Steam). EA does occasionally make the base game free, but expansion, game, and stuff packs are paid products.
Wait for an official sale. Even a single pack purchased legitimately will give you a safer, more stable, and more enjoyable Sims experience than any “free” cracked version.
I understand you're looking for information about The Sims 4 expansion packs for Windows. However, I must provide an important clarification before proceeding: