Registering your new eScan license. To register your new eScan license key, click on Start, then on Programs > eScan for Windows > Know How to Register/Activate Your Product - eScan
Error codes or messages: note the exact text/code and search eScan support knowledge base or contact support for that code. how to check escan license key
Use the eScan License Manager tool or check your email/online account. Registering your new eScan license