What does it mean to activate free network text messages?

Activate the ability to use free online messaging.

Activation is an anti-piracy technology adopted by software manufacturers, which means that the software must be activated before it can become an official user. Activating free online messaging means activating the ability to use free online messaging.

This is a feature where users of a network system can use free network messaging with each other. As long as it is a new machine or the system is restarted after factory reset, you will be asked to send a message to the server to activate this network messaging function.