1, wow3.2.2-3.3.2, all patch files, which can be deleted. That's how folders are named.

2. There is only one zhcn data, and there are many video files that can be deleted.

3.Interface and WTF are folders for plug-ins and key settings. Generally speaking, errors are caused by plug-in conflicts. When these two folders are deleted, he will automatically create a new folder.

The new folder is full of necessary information. You can't delete anything in the data unless you put something in it. If the folder is too large, please check whether the installer is put in it. Including downloaded patches, you can delete them as long as they are installed.

Extended data:

You can slim down World of Warcraft and reduce memory usage by the following methods.

1. Find the installation directory of World of Warcraft and cut the screenshot folder under _retail_, which contains your screenshots in the game.

2. Then delete all installation folders of World of Warcraft.

3. Log in to World of Warcraft official website and click "Game Download".

4. Select Battle.net client download or green download.

5. The client of World of Warcraft only needs nearly 60G, and the old installation package after several updates is 100G, which can be slimmed down by this method.

6. After the download is completed, you can enter the game.