Windows Firewall is a feature that checks information being
sent or downloaded from the Internet or another network to
your computer. Firewall then either allows access or rejects the
access, depending on the settings you have applied. I strongly
recommend that you turn on Windows Firewall. However, a
firewall doesn’t replace the need for antivirus and anti-spyware
software; your computer can be exposed to threats via avenues
other than the Internet and networks.
Turn On Windows Firewall
1 From the Start screen, begin to type
2 When the search result displays the
Control Panel app, click it.
3 Click System And Security
4 Click Windows Firewall.
5 Click Turn Windows Firewall On Or
6 Select the Turn On Windows Firewall
option in the Private Network or
Public Network settings, or turn on
both if you log on to public hot spots.
7 Click OK.
If you want extra security, in the Windows Firewall Customize
Settings dialog box, under the Private Network settings, you
can select the Block All Incoming Connections check box,
which blocks any incoming connection even if you’ve specified
that the connection is safe. By default, the option for
notifying you when Windows blocks a program is selected,
but you can turn that off if you don’t want a notification.