1. Step 1, open WeChat, click "My" in the lower right corner, and you will see "Settings". Click:

2. After clicking Settings, "General" will appear. Click to enter:

3. After clicking General, you will see a "WeChat storage space" at the end. Click to enter:

4. Click to view the specific memory occupied. First, click the "Clear" button in the figure below to clear the cache:

5. After cleaning up, click "Manage" of the chat record:

6. Choose to delete chat records, and support deleting all of them. After deletion, the memory will increase!