While a free demo version allows you to scan and preview mailboxes, saving the recovered data requires a valid . This key proves you have purchased a legitimate license. How to Get Your Stellar Repair for Exchange Activation Key
If you have a legitimate key but are facing issues, check the following common roadblocks: stellar repair for exchange activation key link
Ensure your corporate firewall is not blocking the software from reaching the internet to verify the license. While a free demo version allows you to