Bedienungsanleitung HP 650 (Seite 63 von 83) (Englisch)

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To set, change, or delete an administrator or power-on password in Setup Utility (BIOS):

1. Open Setup Utility (BIOS) by turning on or restarting the computer. While the “Press the ESC

key for Startup Menu” message is displayed in the lower-left corner of the screen, press esc.

2. Use the arrow keys and follow the on-screen instructions. When the Startup Menu is displayed,

press f10.

3. Use the arrow keys to select Security, and then follow the on-screen instructions.

Your changes take effect when the computer restarts.

Using Internet security software

When you use your computer to access email, a network, or the Internet, you potentially expose your

computer to computer viruses, spyware, and other online threats. To help protect your computer,

Internet security software that includes antivirus and firewall features may be preinstalled on your

computer as a trial offer. To provide ongoing protection against newly discovered viruses and other

security risks, security software must be kept up to date. It is strongly recommended that you upgrade

the security software trial offer or purchase the software of your choice in order to fully protect your

computer.

Using antivirus software

Computer viruses can disable programs, utilities, or the operating system, or cause them to function

abnormally. Antivirus software can detect most viruses, destroy them, and in most cases, repair any

damage they have caused.

For more information about computer viruses, select Computer > Help.

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, operating system, 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 48.

Installing security updates

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

left the factory. To protect the computer from security breaches and computer viruses, install all

critical operating system updates as soon as you receive an alert.

Using Internet security software 53

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HP 650 Seite 63

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