You're looking for information on iCare Data Recovery and its registration key. Here's some useful text:

than the one you are trying to recover data from to avoid overwriting your lost files Are you currently facing a specific error message during the activation process?

What is iCare Data Recovery?

Tips and Precautions

Q4: Does iCare Data Recovery work on Mac?

No. iCare is primarily a Windows tool. For Mac, look for iCare Data Recovery for Mac (a separate product with separate keys).

What is iCare Data Recovery?