In fact, many of them occupy WeChat memory. You can try Tencent mobile phone housekeeper, which has the function of garbage cleaning. Housekeeper's Home Page-Cleaning Acceleration-Slimming of Mobile Phone-Wechat Cleaning, where you can select junk files, useless pictures, video pictures of friends you have seen, files generated during WeChat cache and chat, etc. , so you don't have to clean up files you don't want to delete.