Okay here is a nice lil trick I had to learn for myself that I will share with you all
This works with crc errors in rar files and password issues(if the password is correct)
1. Open the first rar file
2. Now go up one level in the rar browser so that you now see all the rars
3. Highlite all the relative rars and right click them as a whole and choose to set default password to the one that was provided in the post.
4. Now while their still highlted click the extract to button of the winrar gui
5. An extraction popup method now appears
6. If you look you'll notice a box that say's keep broken files tick that box
7. Should extract now disregard any warning's or errors.