Win7 optimized the firewall interface and function, so that we can easily set up a firewall to prohibit or allow a program to access the network, so that one can save speed, but to prevent some inexplicable software access network (such as Rogue Software), to protect the security of the computer.
Steps:
In the Start menu, open the Control Panel
In the Control Panel, locate the system and security options and open it
Locate Windows Firewall, click Open
In the firewall panel, we click on the navigation bar above: Allow programs or features through Windows Firewall
On in the open panel, you can see a list, including all the programs that can connect to the network, for example, I often use QQ music to listen to local music, but it is always automatic networking, occupy a certain upload speed, so I can click on the mouse qqmusic, select it, Then click on the lower right corner of the "delete", so that QQ music can not access the network
If we want to add a program to access the network, click the "Allow another program" option in the lower-right corner
Open the Add Program dialog box, we first look for the list of the software we want to add, such as I want to add QQ music, can not find it, then click the "Browse" below
In the Open Browse dialog box, we select the software you want to add, and then click "Open"
Return to the Add Program dialog box, we see the path this column has become a new program path, that is, the path of QQ music, and finally click on "Add" this setting is completed.