HP ZBook 15u G3 Mobile Workstation (ENERGY STAR) Manuel d'utilisateur télécharger pdf (Page 74)

100

101

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.

Windows Defender is preinstalled on your computer. It is strongly recommended that you continue to use an

antivirus program in order to fully protect your computer.

For more information about computer viruses, access HP Support Assistant. To access HP Support Assistant,

from the Start screen, select the HP Support Assistant app.

Using rewall software

Firewalls are designed to prevent unauthorized access to a system or network. A rewall 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 rewalls to consider:

●

Host-based rewalls—Software that protects only the computer it is installed on.

●

Network-based rewalls—Installed between your DSL or cable modem and your home network to

protect all the computers on the network.

When a rewall is installed on a system, all data sent to and from the system is monitored and compared with

a set of user-dened security criteria. Any data that does not meet those criteria is blocked.

Your computer or networking equipment may already have a rewall installed. If not, rewall software

solutions are available.

NOTE: Under some circumstances a rewall can block access to Internet games, interfere with printer or le

sharing on a network, or block authorized e-mail attachments. To temporarily resolve the problem, disable

the rewall, perform the task that you want to perform, and then reenable the rewall. To permanently

resolve the problem, recongure the rewall.

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.

You can choose whether updates are installed automatically. To change the settings, from the Start screen,

type control panel, and then select Control Panel. Select System and Security, select Windows Update,

select

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

Using HP Client Security (select models only)

HP Client Security software is preinstalled on computer models. This software can be accessed through the

HP Client Security tile on the Start screen, the HP Client Security icon in the notication area at the far right of

the taskbar, or 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.

64 Chapter 9 Security

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 100 101

Commentaires sur ces manuels

Pas de commentaire

HP ZBook 15u G3 Mobile Workstation (ENERGY STAR) Manuel d'utilisateur Page 74

Commentaires sur ces manuels

Produits connexes et manuels pour Carnets de notes HP ZBook 15u G3 Mobile Workstation (ENERGY STAR)