For heavy store users, experts suggest keeping compressed Store files (found in the dccCache folder) under 200MB to maintain game performance.
Install the base game first. Before adding any expansions, download the latest official patch from The Sims 3 Website to update the base game directly. the-sims-3-installment-tutorials
Always back up your Electronic Arts\The Sims 3 folder (found in your Documents) before reinstalling or updating, as this contains your saves, mods, and downloads. 2. Installing Store Content For heavy store users, experts suggest keeping compressed
Install smaller items like patterns first to ensure they register correctly in the "Create a Style" tool before adding larger sets. 3. Custom Content (CC) & Mods For heavy store users