Ghost's recovery disk cannot boot on UEFI systems with Secure Boot enabled.
Try running Norton Ghost 15 in compatibility mode. Right-click on the executable, select Properties, and then check the box for "Run this program in compatibility mode for:" and choose an earlier version of Windows that Norton Ghost 15 is known to work with. Norton Ghost 15 License Key Windows 10
I understand you're looking for information about using Norton Ghost 15 on Windows 10, possibly regarding licensing. However, I need to provide an important disclaimer before proceeding: Ghost's recovery disk cannot boot on UEFI systems