How to remove CryptoWall from a system?

Could you please elaborate on the steps involved in removing CryptoWall from a computer system? Given the malicious nature of this ransomware, I'm keen to understand the safest and most effective approach. Would it involve using antivirus software? Or would a system restore be a better option? I'm also concerned about potential data loss, so any advice on how to backup important files before attempting removal would be greatly appreciated. Additionally, are there any common mistakes that should be avoided during the removal process? Thank you for your assistance in navigating this challenging issue.