You can download R-Studio for free to scan your drive. This allows you to see exactly what files are recoverable before you spend a dime.
If your drive is making clicking noises or is physically failing, software recovery might make it worse. In those cases, a professional recovery lab is the better choice. Free Alternatives to R-Studio
A powerful, open-source CLI tool that works on almost any file system.
Most "key generators" or "cracked" installers are wrappers for malware. You might be trying to recover data, but you could end up encrypting your entire drive with ransomware instead.