Lenovo ThinkStation P910, Руководство по техническому обслуживанию аппаратной части

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The cover presence switch starts functioning. If the switch detects that the computer cover is not correctly
installed or closed, an error message will be displayed when you turn on the computer. To fix the error and
log in to the operating system, do the following:
1. Properly install or close your computer cover. See Chapter 9 “Installing or replacing hardware” on
page 101.
2. Start and then exit the Setup Utility program. See “Starting the Setup Utility program” on page 65 and
“Exiting the Setup Utility program” on page 70.
Using firewalls
A firewall can be hardware, software, or a combination of both depending on the level of security required.
Firewalls work on a set of rules to determine which inbound and outbound connections are authorized. If
your computer is preinstalled with a firewall program, it helps protect against computer Internet security
threats, unauthorized access, intrusions, and Internet attacks. It also protects your privacy. For more
information about how to use the firewall program, refer to the help system of your firewall program.
To use Windows Firewall, do the following
1. Click the Start button to open the Start menu.
2. Depending on your Windows version, do one of the following:
• For Windows 7: Click Control Panel .
• For Windows 10: Click Windows System
➙
Control Panel .
3. View Control Panel by Large icons or Small icons, and then click Windows Firewall .
4. Follow the instructions on the screen.
Protecting data against viruses
Your computer is preinstalled with an antivirus program to help you guard against, detect, and eliminate
viruses.
Lenovo provides a full version of antivirus software on your computer with a free 30-day subscription. After
30 days, you must renew the license to continue receiving the antivirus software updates.
Note: Virus definition files must be kept up-to-date to guard against new viruses.
For more information about how to use your antivirus software, refer to the help system of your antivirus
software.
Computrace Agent software embedded in firmware
The Computrace Agent software is an IT asset management and computer theft recovery solution. The
software detects if changes have been made on the computer, such as hardware, software, or the computer
call-in location. You might have to purchase a subscription to activate the Computrace Agent software.
BIOS guard
The BIOS guard module cryptographically verifies all the BIOS updates to the system BIOS flash. Therefore,
the malware is blocked from attacking the BIOS.
Chapter 5
.
Security
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