Firewall allows you to block programs from accessing the Internet. Ensure that blocking a program will not interrupt with your network connection or another program that requires access to the Internet to function properly.

IMPORTANT: If you already have McAfee 12.8, click the I have the new McAfee Security Center link below. The instructions for the new version will open below the link. If you have the older version of McAfee, do not click I have the new McAfee Security Center link below. Just follow the instructions below.

  • How do I determine the version of McAfee installed on my computer?
  • I have the new McAfee Security Center

The instructions given below are for the older version of McAfee.

How do I block access for a program

Many programs on your computer require inbound and outbound access to the Internet. McAfee® Firewall includes a list of programs that are automatically allowed full access, but you can block these permissions.

To block Internet access for a program:

1. On the Windows taskbar next to the clock, right click the McAfee icon, then click Open SecurityCenter.

2. Click the Internet & Network link, then click the Configure link.

3. In the Internet & Network Configuration pane, under the Firewall protection section click the Advanced button.

4. On the Firewall pane, click the Program Permissions link.

5. Under Program Permissions, select a program with Full Access or Outbound-Only Access.

6. Under Action click the Block Access link.

7. Click the OK button.

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How do I block access for a new program

Many programs on your computer require inbound and outbound access to the Internet. McAfee Firewall includes a list of programs that are automatically allowed full access, but you can add a new program and then block its access to the Internet.

To block Internet access for a new program:
1. On the Windows taskbar next to the clock, right click the McAfee icon, then click Open SecurityCenter.

2. Click the Internet & Network link, then click the configure link.

3. In the Internet & Network Configuration pane, under the Firewall protection section click the Advanced button.

4. On the Firewall pane, click the Program Permissions link.

5. Under Program Permissions, click the Add Blocked Program button

6. In The Add Program window select the program you want to add, then click the Open button.

7. Click the OK button.

The newly added program appears under Program Permissions.

Note: You can change the permissions of a newly added program as you would for an existing program by selecting the program and then clicking Grant Outbound-Only Access or Grant Full Access under Action.

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