: Registration is the act of entering your name and 15-digit code. Activation is the subsequent step where the software communicates with the Hard Disk Sentinel activation server to validate that code for your specific hardware.
While "key files" found on third-party sites are often associated with piracy, the key file is a legitimate part of the official licensing system: Official vs. Unofficial hard disk sentinel 570 pro activation key file work
Enter the received upon purchase.