Even if you manage to find a working key through illegal means, the consequences are serious:
If you cannot afford the standard commercial price (around $1,000–$1,500 for a perpetual license), do not resort to piracy. Here are legitimate, low-cost options: product key for minitab 19
Ensure you have an active internet connection for the software to "call home" and verify the license. Troubleshooting Activation Issues Even if you manage to find a working