Lenovo ThinkPad L540 User Manual page 42

How do I use battery power more effectively when I am on the go?
• To conserve power, or to suspend operation without exiting programs or saving files, see "Power-saving
modes" on page 32.
• To achieve the best balance between performance and power saving, change power plan settings.
See "Managing the battery power" on page 32.
• If your computer will be turned off for an extended period of time, you can prevent battery power from
draining by removing the battery.
How do I securely dispose of data stored on the hard disk drive or solid-state drive?
• Study Chapter 4 "Security" on page 49 to find out how you can protect your computer from theft and
unauthorized use.
• Use the Password Manager program to protect the data stored on your computer. For details, see the
help information system of the program.
• Before you dispose of the data on the hard disk drive or the solid-state drive, be sure to read the topic
"Notice on deleting data from your hard disk drive or solid-state drive" on page 57.
How do I get connected in different locations?
• To troubleshoot a wireless networking issue, go to http://www.lenovo.com/support/faq.
• Take advantage of the networking features provided by the Access Connections program (on the
Windows 7 operating system) or Location Awareness in the Lenovo Settings program (on the Windows 8
operating system).
• To learn more about using the wireless features of your computer, refer to "Wireless connections" on
page 33.
• To travel more confidently, be sure to check the tips in "Traveling with your computer" on page 47.
• Press F8 to enable or disable the wireless features.
How do I give presentations or attach an external monitor?
• Ensure that you follow the procedure in the topic "Using an external monitor" on page 37.
• With the Extend desktop function, you can display output on both the computer display and the external
monitor. See "Using dual displays" on page 40.
I have been using the computer for some time already, and it is getting slower. What should I do?
• Follow the "General tips for preventing problems" on page 119.
• Diagnose problems yourself by using the preinstalled diagnostic software. See "Diagnosing problems" on
page 125.
• Recovery tool also is provided on your computer hard disk drive or solid-state drive. For more information,
see Chapter 5 "Recovery overview" on page 59.
Print the following sections and keep them with your computer in case you are unable to access this
online help when necessary.
• "Installing a new operating system" on page 103
• "Computer stops responding" on page 125
• "Power problems" on page 136
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User Guide