How to Block Programs From Accessing the Internet With ESET Smart Security
- 1). Launch an application that you wish to deny access to the Internet. When it tries to connect, ESET will pop up a notification.
- 2). Click "Deny." ESET will stop the application from connecting to the Internet for the current instance of the application.
- 3). Shut down the program and start it again. This time, when the ESET Smart Security window pops up, click "Remember Action." Click "Deny" to permanently deny access to the Internet for this application.
Source...