McAfee products that have a firewall -- such as McAfee AntiVirus Plus and McAfee Total Protection -- include settings that partially or completely remove the Internet access restriction for programs. Although blocking Internet access to many programs can prevent computer infections, some programs -- such as instant messengers -- need a connection to the Internet in order to function. The option to unblock a program’s Internet access restriction is located in the "Internet Connections for Programs" section of your McAfee software’s Firewall settings.

Step 1

Launch your McAfee software, and then click "View Firewall and Anti-Spam Settings" in the "Web and Email Protection" box.

Step 2

Select "Firewall" to open the Firewall window.

Step 3

Select "Internet Connections for Programs" to display the Program Permissions list, and then scroll down the list until you find the program you want to unblock.

Step 4

Select the program, and then click the "Edit" button.

Step 5

Click the "Access" drop-down box, and then select the appropriate access permission. Select "Full" to allow the program to send and receive data; select "Outgoing" to only allow the program to send data.

Step 6

Click the "Send" button to activate the program's new Internet access permission.