: You only need to right-click and extract the very first part ( part1.rar ).
: This indicates a compressed archive file created using WinRAR. Watch.Dogs.2-CPY.part4.rar
: Public download links frequently go dead. If you download 19 out of 20 parts and cannot find the specific part4.rar from that exact same uploader, the entire download becomes completely useless. : You only need to right-click and extract