2. Then enter "Disk Cleanup" in the search box and open it.
3. In the pop-up window, select drive C by default, and then click OK.
4. Wait for the scan to complete.
5. You can check all the files in the list, or you can check the junk files that occupy a large amount.
6. Click OK and it will pop up. Are you sure you want to permanently delete these files? Click Delete File again.