To check your eScan license key, you can typically find it within the Registration section of the software interface, or by locating the original purchase confirmation email or physical product packaging The Importance of the License Key
To summarize:
eScan includes a dedicated utility for managing keys, which is helpful if the main interface is difficult to navigate. Go to your Start Menu Navigate to the eScan License Key Manager
It depends on your license type. Home editions usually cover 1, 3, or 5 PCs. Business editions allow more. Check your license details.