Hi Shatakshi,
Enterprise Edition is when you first open Studio and choose Activate license and enter a valid licence key.
For example, when you request Trial, you get an email with the .msi installer and a Trial key(which is a valid license key). The advantages would be that it doesn’t update automatically(which is a good thing in production) and you have the Robot as a Windows service. It can also be activated offline.
More details in this post: UiPath: Community, Enterprise & Installers
If you have any more questions, shoot 
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