HP dv7-7135us Installing software updates, Using antivirus software, Using firewall software

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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, 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 62.

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.

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Maintain Downloading a Bios updateUsing System Diagnostics What you need to know Backing up, restoring, and recoveringCreating backups Creating recovery media to recover the original systemCreating a system restore point Creating system restore pointsBacking up system and personal information Tips for a successful backupCreating a backup using Windows Backup and Restore Restoring specific files using Windows Backup and Restore Restore and recoveryRestoring to a previous system restore point Recovering the original system using HP Recovery ManagerRecovering using the recovery media Recovering using HP Recovery partition select models onlyChanging the computer boot order Input power SpecificationsInput power Rating Operating environment Troubleshooting and support Disc drive problems TroubleshootingWireless connection problems Cannot connect to a preferred network Cannot connect to a WlanCurrent network security codes are unavailable Wlan connection is very weak Cannot connect to the 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