An authentic permanently enables the application's most critical functions:
If you own a Standard license, upgrading to Professional costs only the price difference (EUR 10 or USD 12). This can be arranged via PayPal by sending the amount to info@hdsentinel.com along with your Standard registration key. Registration Key Hard Disk Sentinel 6.10 Pro
If you manage to find a valid-looking key, it is almost certainly: it is almost certainly: