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5. Use a pointing device or the arrow keys to select Disable protection.

6. To save your changes and exit Computer Setup, click the Save icon in the lower-left corner of

the screen, and then follow the on-screen instructions.

– or –

Use the arrow keys to select File > Save Changes and Exit, and then press enter.

Using antivirus software

When you use the computer to access e-mail, a network, or the Internet, you potentially expose it to

computer viruses. Computer viruses can disable the operating system, programs, or utilities, or cause

them to function abnormally.

Antivirus software can detect most viruses, destroy them, and, in most cases, repair any damage they

have caused. To provide ongoing protection against newly discovered viruses, antivirus software

must be kept up to date.

An antivirus program may be preinstalled on your computer and may include a trial offer. It is strongly

recommended that you upgrade the trial offer or purchase the antivirus program of your choice in

order to fully protect your computer.

For more information about computer viruses, from the Start screen, type help, and then select Help

and Support from the list of applications.

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.

Using antivirus software 79

HP Notebook User Manual

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