HP EliteBook Revolve 810 G1 Tablet - Manual (Page 71)

Using firewall software
Firewalls are designed to prevent unauthorized access to a system or network. A firewall can be a
software program you install on your computer and/or network, or it can be a solution made up of
both hardware and software.
There are two types of firewalls to consider:
● Host-based firewalls—Software that protects only the computer it is installed on.
● Network-based firewalls—Installed between your DSL or cable modem and your home network
to protect all the computers on the network.
When a firewall is installed on a system, all data sent to and from the system is monitored and
compared with a set of user-defined security criteria. Any data that does not meet those criteria is
blocked.
Your computer or networking equipment may already have a firewall installed. If not, firewall software
solutions are available.
NOTE: Under some circumstances a firewall can block access to Internet games, interfere with
printer or file sharing on a network, or block authorized e-mail attachments. To temporarily resolve the
problem, disable the firewall, perform the task that you want to perform, and then reenable the
firewall. To permanently resolve the problem, reconfigure the firewall.
Installing critical security updates
CAUTION: Microsoft® sends out alerts regarding critical updates. To protect the computer from
security breaches and computer viruses, install all critical updates from Microsoft as soon as you
receive an alert.
Updates to the operating system and other software may have become available after the computer
left the factory. To be sure that all available updates are installed on the computer, observe these
guidelines:
● Run Windows Update as soon as possible after you set up your computer.
● Run Windows Update monthly thereafter.
● Obtain updates to Windows and other Microsoft programs, as they are released, from the
Microsoft website and through the updates link in from the Microsoft website and through the
updates link in HP Support Assistant. To access HP Support Assistant on the Start screen,
select the HP Support Assistant app.
Using HP Client Security Manager (select models only)
HP Client Security Manager software is preinstalled on select computer models. This software can be
accessed through Windows Control Panel. It provides security features that help protect against
unauthorized access to the computer, networks, and critical data. For more information, see the HP
Client Security software Help.
Using firewall software 61