Hp 250 G2 Notebook PC User Manual download pdf (Page 69)

For more information about computer viruses, type viruses in the Search box in Help and Support.

Using firewall software

Firewalls are designed to prevent unauthorized access to a system or network. A firewall can be

software you install on your computer and/or network, or it can be a combination 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.

Installing software updates

HP, Microsoft Windows, and third-party software installed on your computer should be regularly

updated to correct security problems and improve software performance. For more information, see

Updating programs and drivers on page 53.

Installing Windows security updates

Updates to the operating system and other software may have become available after the computer

left the factory. 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.

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. Select Start > All

Programs > Windows Update.

●

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 Help and Support.

Installing HP and third-party software updates

HP recommends that you regularly update the software and drivers that were originally installed on

your computer. To download the latest versions, go to

http://www.hp.com/support. At this location,

you can also register to receive automatic update notifications when they become available.

If you have installed third-party software after you purchased your computer, regularly update the

software. Software companies provide software updates to their products to correct security problems

and improve functionality of the software.

Securing your wireless network

When you set up your wireless network, always enable security features. For more information, see

Protecting your WLAN on page 21.

Installing software updates 59

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