Lenovo ThinkPad T420 User Manual page 44

• To conserve power, or to suspend operation without exiting applications or saving files, see the
explanation about "power-saving modes" on page 39.
• To achieve the best balance between performance and power saving, create and apply power plans (in
Windows XP, power schemes) by use of "Power Manager" on page 22.
• If your computer will be turned off for an extended period of time, you can prevent battery power
from draining by removing the battery. Look for more information about using the battery in "Power
management" on page 37.
Concerned about security or need to securely dispose of data stored on your hard disk or solid
state drive?
• Study the Chapter 4 "Security" on page 89 section to find out how you can protect your computer from
theft and unauthorized use.
• The "Client Security Solution" on page 21 preinstalled on your computer performs many of the security
tasks that help protect it. If the setup wizard runs, to keep your secure, be sure to set up the Client
Security Solution.
Note: If your computer is a Windows 7 model, Client Security Solution is not preinstalled on it.
• Before you dispose of the data on the hard disk drive or the solid state drive, be sure to read "Notice on
deleting data from your hard disk or solid state drive" on page 100.
Getting connected in different locations is a challenge?
• To troubleshoot a wireless networking issue, see http://www.lenovo.com/support/faq.
• Take advantage of the networking features by use of "Access Connections" on page 20.
• To learn more about using the wireless features of your computer, refer to "Wireless connections" on
page 42.
• If your computer has a modem, see "Using the built-in modem" on page 49.
• To travel more confidently, be sure to check the tips in "Traveling with your computer" on page 86.
• Press "Fn+F5" on page 30, or use the wireless radio switch to enable or disable the wireless features.
Need to give presentations or attach an external monitor often?
• Use "Presentation Director" on page 23 to "set up a presentation" on page 75.
Note: If your computer is a Windows 7 model, it does not support Presentation Director, however the
"Fn+F7" on page 29 key combination may still be used to switch display output location.
• Make sure that you follow the procedure for "Attaching an external monitor" on page 70.
• With the "Extend desktop function" on page 75, you can display output on both the computer display
and an external monitor.
Need to attach or replace a device?
• See Chapter 6 "Replacing devices" on page 111 for more information about replacing the devices of
your computer.
• See Chapter 7 "Enhancing your computer" on page 149 for more information about enhancing the
features of your computer.
You've been using your computer for some time already, and it is getting slower?
• Follow the "General tips for preventing problems" on page 197.
• You can "diagnose problems" on page 203 yourself by using the preinstalled software.
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User Guide