Security Hardware Support

Hi,

I am planning to make a education software consisting on video lectures. Is there any hardware like read only device or something else on which i can put a security key which cant be deleted or copied and through which i can secure my software.
A user must need this hardware to start the software
Software will be copied on windows system and every time if a user want to open he or she must need this device to start this software.
Or is there any other advice or recommendation for the security