Lenovo 20JD, User Manual, Page: 34 / 150

How do I attach an external display?
• Refer to “Using an external display” on page 37.
• With the Extend desktop function, you can display output on both the computer display and an external
display.
How do I attach or replace a device?
Refer to the appropriate topic in Chapter 9 “Replacing devices” on page 95.
I have been using the computer for some time already, and is getting slower. What should I do?
• Follow the “General tips for preventing problems” on page 77.
• Diagnose problems yourself by using the preinstalled diagnostic software. See “Diagnosing problems
with Lenovo Companion” on page 77.
• Check for recovery solutions in Chapter 8 “Recovery information” on page 93.
Print the following topics and keep them with your computer in case you are unable to access this
electronic user guide when necessary.
• “Installing the Windows 10 operating system” on page 61
• “Computer stops responding” on page 78
• “Power problems” on page 89
ThinkPad Pen Pro
The ThinkPad Pen Pro is stored in the pen slot. To remove the pen from the slot, slide the tab of the pen a
little bit out, and then completely pull out the pen.
Note: The ThinkPad Pen Pro is not waterproof. Take care not to soak it or dip it in water.
With the ThinkPad Pen Pro, inputting text is easier in a natural manner when you are:
• Taking notes
• Annotating Portable Document Format (PDF) files
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User Guide