Lenovo F0FB003TGE operation manual
User Guide
IdeaCentre AIO 5
Read this first
Before using this documentation and the product it supports, ensure that you read and understand the
following:
• Appendix A “Important safety information” on page 47
• Safety and Warranty Guide
• Setup Guide
First Edition (April 2020)
© Copyright Lenovo 2020.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS35F-05925.
Contents
About this documentation . . . . . . . . iii
Chapter 1. Meet your computer. . . . . 1
Front . . . . . . . . . . . . . . . . . . . . 1
Rear . . . . . . . . . . . . . . . . . . . . 3
Bottom . . . . . . . . . . . . . . . . . . . 7
Features and specifications . . . . . . . . . . . 8
Statement on USB transfer rate . . . . . . . . 9
Chapter 2. Get started with your
computer . . . . . . . . . . . . . . . . 11
Adjust the computer stand (for selected models) . . 11
Get started with Windows 10 . . . . . . . . . 11
Windows account . . . . . . . . . . . . 11
Windows user interface . . . . . . . . . . 12
Connect to networks. . . . . . . . . . . . . 13
Connect to the wired Ethernet . . . . . . . 13
Connect to Wi-Fi networks . . . . . . . . 13
Use Lenovo Vantage . . . . . . . . . . . . . 13
Use the multi-touch screen (for selected
models) . . . . . . . . . . . . . . . . . . 14
Use multimedia . . . . . . . . . . . . . . . 17
Use audio . . . . . . . . . . . . . . . 17
Use the camera . . . . . . . . . . . . . 17
Connect to an external display . . . . . . . 17
Chapter 3. Explore your computer . . 19
Manage power . . . . . . . . . . . . . . . 19
Set power button behaviors . . . . . . . . 19
Set the power plan . . . . . . . . . . . . 19
Transfer data . . . . . . . . . . . . . . . . 19
Connect to a Bluetooth-enabled device . . . 19
Use the optical drive . . . . . . . . . . . 20
Use a media card . . . . . . . . . . . . 20
Purchase accessories . . . . . . . . . . . . 21
Chapter 4. Troubleshooting and
recovery . . . . . . . . . . . . . . . . 23
Basic procedure for resolving computer
problems . . . . . . . . . . . . . . . . . 23
Troubleshooting . . . . . . . . . . . . . . 23
Startup problems . . . . . . . . . . . . 24
Screen problems . . . . . . . . . . . . 25
Audio problems . . . . . . . . . . . . . 26
Network problems . . . . . . . . . . . . 26
Performance problems . . . . . . . . . . 29
Storage drive problems . . . . . . . . . . 30
CD or DVD problems . . . . . . . . . . . 30
Serial connector problems. . . . . . . . . 31
Software problems. . . . . . . . . . . . 31
Recovery . . . . . . . . . . . . . . . . . 31
Restore system files and settings to an earlier
point . . . . . . . . . . . . . . . . . 32
Restore your files from a backup
Reset your computer . . . . . . . . . . . 32
Use advanced options . . . . . . . . . . 32
Windows automatic recovery. . . . . . . . 32
Create and use a recovery USB device . . . . 32
Update the device driver . . . . . . . . . 33
. . . . . . 32
Chapter 5. CRU replacement . . . . . 35
What are CRUs . . . . . . . . . . . . . . . 35
Replace a CRU . . . . . . . . . . . . . . . 35
Storage drive . . . . . . . . . . . . . . 35
Computer cover . . . . . . . . . . . . . 38
Chapter 6. Help and support . . . . . 43
Self-help resources . . . . . . . . . . . . . 43
Call Lenovo . . . . . . . . . . . . . . . . 44
Before you contact Lenovo . . . . . . . . 44
Lenovo Customer Support Center . . . . . . 45
Purchase additional services. . . . . . . . . . 45
Appendix A. Important safety
information . . . . . . . . . . . . . . . 47
Appendix B. Accessibility and
ergonomic information . . . . . . . . 61
Appendix C. Supplemental
information about the Ubuntu operating
system . . . . . . . . . . . . . . . . . 65
Appendix D. Compliance
information . . . . . . . . . . . . . . . 67
Appendix E. Notices and
trademarks . . . . . . . . . . . . . . . 79
© Copyright Lenovo 2020 i
ii User Guide
About this documentation
• Illustrations in this documentation might look different from your product.
• Depending on the model, some optional accessories, features, and software programs might not be
available on your computer.
• Depending on the version of operating systems and programs, some user interface instructions might not
be applicable to your computer.
• Documentation content is subject to change without notice. Lenovo makes constant improvements on the
documentation of your computer, including this User Guide. To get the latest documentation, go to:
https://pcsupport.lenovo.com
• Microsoft® makes periodic feature changes to the Windows® operating system through Windows Update.
As a result, some information in this documentation might become outdated. Refer to Microsoft resources
for the latest information.
• This documentation applies to the following product models:
Model name
IdeaCentre AIO 5 27IMB05
IdeaCentre
AIO 5 24IMB05
Machine type (MT)
F0FA
F0FB
© Copyright Lenovo 2020 iii
iv User Guide
Chapter 1. Meet your computer
Front
1. Integrated camera activity
indicator
2. Integrated microphones (2) Capture or record sound and voice.
3. Integrated camera*
4. Infrared camera* Sign in to your account with face authentication.
5. Multi-touch screen
6. Wireless charging pad**
© Copyright Lenovo 2020 1
The indicator is on when the camera is in use.
Take pictures or record videos by clicking Camera from the Start menu.
If you use other apps that support photographing, video chatting, and video
conference, the camera starts automatically when you enable the camerarequired feature from the app.
Enable you to use your computer with simple touch gestures. See “Use the multitouch screen (for selected models)” on page 14.
Charge a phone that supports wireless charging.
1. Place your phone at the center of the pad to start charging.
2. Remove the phone from the pad to stop charging.
Note:
If the indicator blinks amber, adjust the phone's position and remove any metal
object on or near the pad.
7. Internal speakers Enable you to experience high-quality sound.
The indicator shows the charging status of a phone that supports wireless
charging.
• Blinking white: The phone is being charged.
8. Wireless charging indicator**
• Solid white: The phone is fully charged.
• Blinking amber: Charging error occurs.
• Off: No phone is detected.
Note: For some phones, the indicator might still blink white when the phone is
fully charged.
* Either an integrated camera or an infrared camera is provided on your computer.
** for selected models
2
User Guide
Rear
24-inch models
1. PC/Monitor mode switcher
2. HDMI 1.4 in connector
3. Ethernet connector
4. HDMI 1.4 out connector
5. USB 2.0 connectors (2)
6. USB 3.2 connector Gen 1 /
Gen 2*
Switch between PC mode and monitor mode manually.
Receive audio and video signals to the computer. For more information, see
https://www.hdmi.org/manufacturer/hdmi_1_4/index.aspx.
Connect to a local area network (LAN). When the green indicator is on, the
computer is connected to a LAN. When the yellow indicator blinks, data is being
transmitted.
Send audio and video signals from the computer to another audio or video device,
such as a high-performance monitor. For more information, see
www.hdmi.org/manufacturer/hdmi_1_4/index.aspx
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
.
Chapter 1. Meet your computer 3
https://
7. 3 in 1 SD card slot
Supported cards:
• Secure Digital (SD) card
• Secure Digital eXtended-Capacity (SDXC) USH-1 card
• Secure Digital High-Capacity (SDHC) USH-1 card
Note: Your computer does not support the content protection for recordable
media (CPRM) feature for the SD card.
See “Use a media card ” on page 20.
8. USB 3.2 connectors Gen 2 (2)
9. Combo audio jack
10. Power adapter connector Connect the power adapter to your computer for power supply.
11. Power button
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
Connect headphones or headsets with a 3.5-mm (0.14-inch), 4-pole plug.
Note: This jack does not support standalone external microphones. If you use
headsets, choose one with a single plug.
Press to turn on the computer.
To turn off the computer, open the Start menu, click
Shut down.
The indicator in the power button shows the system status of your computer.
• On: The computer is on.
• Off: The computer is off or in hibernation mode.
• Blinking: The computer is in sleep mode.
Power, and then select
4 User Guide
27-inch models
1. PC/Monitor mode switcher
2. HDMI 1.4 in connector
3. Ethernet connector
4. HDMI 1.4 out connector
5. USB 2.0 connectors (2)
6. USB-C
TM
connector (USB 3.2
Gen 1)
Switch between PC mode and monitor mode manually.
Receive audio and video signals to the computer. For more information, see
https://www.hdmi.org/manufacturer/hdmi_1_4/index.aspx.
Connect to a local area network (LAN). When the green indicator is on, the
computer is connected to a LAN. When the yellow indicator blinks, data is being
transmitted.
Send audio and video signals from the computer to another audio or video device,
such as a high-performance monitor. For more information, see
www.hdmi.org/manufacturer/hdmi_1_4/index.aspx
.
https://
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
• Charge your computer.
• Charge USB-C compatible devices with the output voltage and current of 5 V
and 3 A.
• Transfer data at USB 3.1 speed, up to 5 Gbps.
• Connect to USB-C accessories to help expand your computer functionality. To
purchase USB-C accessories, go to
https://www.lenovo.com/accessories.
Chapter 1. Meet your computer 5
7. 3 in 1 SD card slot
Supported cards:
• Secure Digital (SD) card
• Secure Digital eXtended-Capacity (SDXC) USH-1 card
• Secure Digital High-Capacity (SDHC) USH-1 card
Note: Your computer does not support the content protection for recordable
media (CPRM) feature for the SD card.
See “Use a media card ” on page 20.
8. USB 3.2 connectors Gen 1 (2)
9. Combo audio jack
10. Power adapter connector Connect the power adapter to your computer for power supply.
11. Power button
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
Connect headphones or headsets with a 3.5-mm (0.14-inch), 4-pole plug.
Note: This jack does not support standalone external microphones. If you use
headsets, choose one with a single plug.
Press to turn on the computer.
To turn off the computer, open the Start menu, click
Shut down.
The indicator in the power button shows the system status of your computer.
• On: The computer is on.
• Off: The computer is off or in hibernation mode.
• Blinking: The computer is in sleep mode.
Power, and then select
6 User Guide
Bottom
1. Storage drive door*
2. Internal speakers (2)
3. Cable clip
* for 24-inch models only
Enable you to insert or remove the storage drive. You can use the latch to lock or
unlock the storage drive door.
Enable you to experience high-quality sound.
Lock cables of external devices to your computer through a cable clip to keep
your desktop organized.
Chapter 1. Meet your computer 7
Features and specifications
1. Right-click the Start button to open the Start context menu.
Hardware configuration
2. Click Device Manager. Type the administrator password or provide
confirmation if prompted.
Power supply
Adaptability for power supply
Microprocessor
Memory Double data rate 4 (DDR4) small outline dual in-line memory module (SODIMM)
Storage device
Display features
• AIO 5 24IMB05: 90 W/120 W/150 W
• AIO 5 27IMB05: 120 W/150 W/170 W
• Mainland China: 220 V±22 V, 50 Hz±1 Hz
• Adaptive voltage positioning: 90 V to 264 V, 50/60 Hz
• With voltage selection switch: 90 V to 264 V, 50 Hz±1 Hz
To view the microprocessor information of your computer, right-click the Start
button and then click System.
To know the storage drive capacity of your computer, right-click the Start button
and then click Disk Management.
Note: The storage drive capacity indicated by the system is less than the nominal
capacity.
• Color display with Thin Film Transistor (TFT) technology
• Color display with Wide Viewing Angle (WVA)
• Display size:
– 609.6 mm (24 inches)
– 685.8 mm (27 inches)
• Display resolution:
– 1920 x 1080 pixels (24 inches)
– 2560 x 1440 pixels (27 inches)
• Multi-touch technology*
• The integrated graphics card supports the following:
– HDMI 1.4 in connector
– HDMI 1.4 out connector
• The optional discrete graphics card provides an enhanced video experience
and extended capabilities.
Expansion
8 User Guide
• 3 in 1 SD card slot (SD, SDHC, SDXC)
• Memory slots
• M.2 solid-state drive slot
• External optical drive*
• Storage drive bay
• Bluetooth
Network features
Other features
• Ethernet LAN
• Wireless LAN
• PC/Monitor mode switcher
• Wireless charging pad**
• Infrared camera/integrated camera
• Modern standby**
• Storage drive door**
* optional
** for selected models
Statement on USB transfer rate
Depending on many factors such as the processing capability of the host and peripheral devices, file
attributes, and other factors related to system configuration and operating environments, the actual transfer
rate using the various USB connectors on this device will vary and will be slower than the data rate listed
below for each corresponding device.
USB device Data rate (Gbit/s)
3.1 Gen 1/3.2 Gen 1
3.1
Gen 2/3.2 Gen 2
3.2
Gen 2 × 2
5
10
20
Chapter 1. Meet your computer 9
10 User Guide
Chapter 2. Get started with your computer
Adjust the computer stand (for selected models)
Note: For information about installing the computer stand, refer to the setup guide that comes with your
computer.
Tilt the screen forward and back.
Get started with Windows 10
Learn the basics of Windows 10 and start working with it right away. For more information about Windows
10, see the Windows help information.
Windows account
A user account is required to use the Windows operating system. It can either be a Windows user account or
a Microsoft account.
Windows user account
When you start Windows for the first time, you are prompted to create a Windows user account. This first
account you created is of the “Administrator” type. With an Administrator account, you can create additional
user accounts or change account types by doing the following:
1. Open the Start menu and select Settings ➙ Accounts ➙ Family & other users.
© Copyright Lenovo 2020 11
2. Follow the on-screen instructions.
Microsoft account
You can also log in to the Windows operating system with a Microsoft account.
To create a Microsoft account, go to the Microsoft sign-up page at
https://signup.live.com and follow the on-
screen instructions.
With a Microsoft account, you can:
• Enjoy one-time signing in if you are using other Microsoft services, such as OneDrive, Skype, and Outlook.
com.
• Sync personalized settings across other Windows-based devices.
Windows user interface
1. Account
2. Documents
3. Pictures
4. Settings
5. Power
6. Start button
7. Windows Search
8. Task View
9. Windows notification area
10. Battery status icon
12 User Guide
Change account settings, lock the computer, or sign out from the current account.
Open the Documents folder, a default folder to save your received files.
Open the Pictures folder, a default folder to save your received pictures.
Launch Settings.
Shut down, restart, or put the computer into sleep mode.
Open the Start menu.
Type what you are looking for in the search box and get search results from your
computer and the Web.
Display all opened apps and switch among them.
Display notifications and status of some features.
Display power status and change battery or power settings. When your computer
is not connected to ac power, the icon changes to
.
11. Network icon
Connect to an available wireless network and display the network status. When
connected to a wired network, the icon changes to
.
12. Action center
Open the Start menu
• Click the Start button.
• Press the Windows logo key on the keyboard.
Open the Start context menu
Right-click the Start button.
Access Control Panel
• Open the Start menu and click Windows System ➙ Control Panel.
• Use Windows Search.
Launch an app
• Open the Start menu and select the app you want to launch.
• Use Windows Search.
Display the latest notifications from apps and provide quick access to some
features.
Connect to networks
Your computer helps you connect to the world through a wired or wireless network.
Connect to the wired Ethernet
Connect your computer to a local network through the Ethernet connector on your computer with an
Ethernet cable.
Connect to Wi-Fi networks
1. Click the network icon in the Windows notification area. A list of available wireless networks is displayed.
2. Select a network available for connection. Provide required information, if needed.
Use Lenovo Vantage
The preinstalled Lenovo Vantage is a customized one-stop solution to help you maintain your computer with
automated updates and fixes, configure hardware settings, and get personalized support.
Access Lenovo Vantage
Open the Start menu and click Lenovo Vantage
To download the latest version of Lenovo Vantage, go to Microsoft Store and search by the app name.
. You also can type Lenovo Vantage in the search box.
Chapter 2. Get started with your computer 13
Key features
Lenovo Vantage enables you to:
• Know the device status easily and customize device settings.
• Download and install UEFI BIOS, firmware and driver updates to keep your computer up-to-date.
• Monitor your computer health, and secure your computer against outside threats.
• Look up warranty status (online).
• Access User Guide and helpful articles.
Notes:
• The available features vary depending on the computer model.
• Lenovo Vantage makes periodic updates of the features to keep improving your experience with your
computer. The description of features might be different from that on your actual user interface.
Use the multi-touch screen (for selected models)
If your computer display supports the multi-touch function, you can navigate the screen with simple touch
gestures.
Note: Some gestures might not be available depending on the app you use.
Tap once
• From the Start menu: Open an app or item.
• From the desktop: Select an app or item.
• In an open app: Perform an action such as Copy
Delete, depending on the app.
Tap twice quickly
Open an app or item from the desktop.
, Save, and
14 User Guide
Tap and hold
Open a shortcut menu.
Slide
Scroll through items, such as lists, pages, and photos.
Drag an item to the location you want
Move an object.
Move two fingers closer together
Zoom out.
Chapter 2. Get started with your computer 15
Move two fingers farther apart
Zoom in.
Swipe in from the right edge
Open the action center to see your notifications and quick actions.
Swipe in from the left edge
View all your open windows in task view.
• Swipe downwards shortly from the top edge (for full-screened
app or when your computer is in the tablet mode)
Show a hidden title bar.
• Swipe in from the top edge to the bottom edge (when your
computer is in the tablet mode)
Close the current app.
16 User Guide
Tips
• Turn off the computer before cleaning the multi-touch screen.
• Use a dry, soft, and lint-free cloth or a piece of absorbent cotton to remove fingerprints or dust from the
multi-touch screen. Do not apply solvents to the cloth.
• The multi-touch screen is a glass panel covered with a plastic film. Do not apply pressure or place any
metallic object on the screen, which might damage the touch panel or cause it to malfunction.
• Do not use fingernails, gloved fingers, or inanimate objects for input on the screen.
• Regularly calibrate the accuracy of the finger input to avoid a discrepancy.
Use multimedia
Use your computer for business or entertainment with the devices (such as a camera, a monitor, or
speakers).
Use audio
To enhance the audio experience, connect speakers, headphones, or a headset to the audio connector.
Adjust the volume
1. Click the volume icon in the Windows notification area on the taskbar.
2. Follow the on-screen instructions to adjust the volume. Click the speaker icon to mute the audio.
Change the sound settings
1. Go to Control Panel and view by category.
2. Click Hardware and Sound ➙ Sound.
3. Change the settings as you prefer.
Use the camera
You can use the camera to take photos or record videos.
To take photos or record a video:
1. Open the Start menu and click Camera. You also can type Camera in the search box.
2. To take a photo, click the camera icon. If you want to record video, click the video icon to switch to
video mode.
If you use other programs that provide features such as photographing, video capturing, and video
conference, the camera starts automatically when you enable the camera-required feature.
Connect to an external display
Connect your computer to a projector or a monitor to give presentations or expand your workspace.
Connect to a wired display
1. Connect the external display to an appropriate video connector on your computer, such as the VGA-out
connector, DisplayPort-out connector, or HDMI-out connector.
2. Connect the external display to an electrical outlet.
3. Turn on the external display.
Chapter 2. Get started with your computer 17
If your computer cannot detect the external display, right-click an empty area of the desktop, and then click
Display settings ➙ Detect.
Connect to a wireless display
To use a wireless display, ensure that both your computer and the external display support the Miracast
®
feature.
• Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices ➙ Add
Bluetooth or other device. In the Add a device window, click Wireless display or dock. Then, follow the
instructions on the screen.
• Click the action center icon
in the Windows notification area and click Connect. Select the wireless
display and follow the on-screen instructions.
Set the display mode
Right-click a blank area on the desktop and select Display settings
. Then, select a display mode of your
preference from the Multiple displays menu.
• Duplicate these displays: Display the same video output on both your computer screen and an external
display.
• Extend these displays: Extend the video output from your computer display to an external display. You
can drag and move items between the two displays.
• Show only on 1: Display the video output only on your computer screen.
• Show only on 2: Display the video output only on an external display.
If you show programs using DirectDraw or Direct3D
®
in full-screen mode, only the main display shows the
video output.
Change display settings
1. Right-click a blank area on the desktop and select Display settings
.
2. Select the display that you want to configure.
3. Change display settings of your preference.
You can change the settings for both the computer display and the external display. For example, you can
define which one is the main display and which one is the secondary display. You also can change the
resolution and orientation.
Note: If you set a higher resolution for the computer display than the external display, only part of the screen
can be displayed on the external display.
18
User Guide
Chapter 3. Explore your computer
Manage power
Use the information in this section to achieve the best balance between performance and power efficiency.
Set power button behaviors
You can define what the power button does according to your preference. For example, by pressing the
power button, you can turn off the computer or put the computer to sleep or hibernation mode.
To change what the power button does:
1. Go to Control Panel and view by large icons or small icons.
2. Click Power Options ➙ Choose what the power buttons do.
3. Change the settings as you prefer.
Set the power plan
For ENERGY STAR® compliant computers, the following power plan takes effect when your computers have
been idle for a specified duration:
Table 1. Default power plan (when plugged into ac power)
• Turn off the display: After 10 minutes
• Put the computer to sleep: After 25 minutes
To awaken the computer from Sleep mode, press any key on your keyboard.
To reset the power plan to achieve the best balance between performance and power saving:
1. Go to Control Panel and view by large icons or small icons.
2. Click Power Options, and then choose or customize a power plan of your preference.
Transfer data
Quickly share your files using the built-in Bluetooth technology among devices with the same features. You
also can install a disc or media card to transfer data.
Connect to a Bluetooth-enabled device
You can connect all types of Bluetooth-enabled devices to your computer, such as a keyboard, a mouse, a
smartphone, or speakers. To ensure that the connection is successful, place the devices 10 meters (33 feet),
at most, from the computer.
1. Turn on Bluetooth on the computer.
a. Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices.
b. Turn on the Bluetooth switch.
2. Click Add Bluetooth or other device ➙ Bluetooth.
3. Select a Bluetooth device, and then follow the on-screen instructions.
© Copyright Lenovo 2020 19
Your Bluetooth device and computer will automatically connect the next time if the two devices are in range
of each other with Bluetooth turned on. You can use Bluetooth for data transfer or remote control and
communication.
Use the optical drive
If your computer has an optical drive, read the following information.
Know the type of your optical drive
1. Right-click the Start button to open the Start context menu.
2. Click Device Manager. Type the administrator password or provide confirmation, if prompted.
Install or remove a disc
1. With the computer on, press the eject/close button on the optical drive. The tray slides out of the drive.
2. Insert a disc into the tray or remove a disc from the tray, and then press the eject/close button again to
close the tray.
Note: If the tray does not slide out of the drive when you press the eject/close button, turn off the computer.
Then, insert a straightened paper clip into the emergency-eject hole adjacent to the eject/close button. Use
the emergency eject only in an emergency.
Record a disc
1. Insert a recordable disc into the optical drive that supports recording.
2. Do one of the following:
• Open the Start menu, and then click Settings ➙ Devices ➙ AutoPlay. Select or turn on Use
AutoPlay for all media and devices.
• Open Windows Media Player.
• Double-click the ISO file.
3. Follow the on-screen instructions.
Use a media card
If your computer has a SD-card slot, read the following information.
Install a media card
1. Locate the SD-card slot.
2. Ensure that the metal contacts on the card are facing the ones in the SD-card slot. Insert the card firmly
into the SD-card slot until it is secured in place.
Remove a media card
Attention: Before removing a media card, eject the card from the Windows operating system first.
Otherwise, data on the card might get corrupted or lost.
1. Click the triangular icon in the Windows notification area to show hidden icons. Then, right-click the
Safely Remove Hardware and Eject Media icon.
2. Select the corresponding item to eject the card from the Windows operating system.
3. Press the card and remove it from your computer. Store the card safely for future use.
20
User Guide
Purchase accessories
Lenovo has a number of hardware accessories and upgrades to help expand the capabilities of your
computer. Options include memory modules, storage devices, network cards, power adapters, keyboards,
mice, and more.
To shop at Lenovo, go to
https://www.lenovo.com/accessories.
Chapter 3. Explore your computer 21
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