Similarly, deactivation disconnects an application from a valid user license. Also, a single license for Adobe software lets you install the application on two computers. Although in some cases you have to do it manually before you use it. Generally, the activation process is automatic when you ‘Sign in’. Activation is connecting to a valid user license.
It is to a large extent beneficial when you know these things. There are not many people who know, how to activate or deactivate Adobe applications.