Game Help:GCCTSU3 Redo/DCCache

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Causes

There is no telling what caused Sims3Pack installs to go missing or become corrupted. But they seem to coincide with EADM/Origin updates sometimes, or after updating, or after installing new packs.

So, it is a good idea to always keep current Backups, before you do any of these activities.

Actions

step 1: create backup

Have you created Backups when prompted before? No? Well, go and create a Backup of your User folders before proceeding.

step 2: rename folders

For the most part, you can try the below suggestions in Next Step after renaming DCCache folder only. If you want to be thorough, you can also rename the following:

CurrentGame.Sims3
DCCache
Library
InstalledWorlds
Saves
SaveSims

If you rename the above, you need to also delete Cache and/or thumbnail files, so we're not working with any corrupted or outdated data.

Instead of renaming each of the above folders individually, you can also rename the whole The Sims 3 folder and start from scratch.

step 3: start Launcher

Start Launcher (or the game) to have the folders recreated.

step 4: install one item only

Install one item at this time just to test.

Next Step

You can work through the suggestions one at a time, starting from the first or jump directly and choose which is applicable. But, if you do not know the cause of the missing CC, working down the list is the recommended action.