To activate hotkeys, press and hold the key before pressing the other key in the hotkey combination. English Hotkey Function Description Fn+F1 Sleep Put the computer in Sleep mode. Fn+F2 Wireless LAN Enables/disables the Wireless LAN function. Fn+F3 Brightness Down Decrease the screen brightness. Fn+F4 Brightness Up Increases the screen brightness. Fn+F5 Display Toggle "Switche display output between the display screen, external monitor (if connected) and both." Fn+F6 Screen Display Toggle Turns the screen display on and off. Fn+F7 Volume Mute Mute the sound Fn+F8 Volume Down Decrease the sound volume. Fn+F9 Volume Up Increases the sound volume. Fn+F10 Touchpad Toggle Turns the internal touchpad on and off. Fn+F11 Bluetooth Enables/disable the Bluetooth function. Fn+F12 Webcam Turns the internal webcam on and off. Use your U2142 as a Tablet PC The screen of U2142 is convertible to simulate a Tablet PC. Follow the Steps touse this function: 1. Open the lid (the screen display of U2142.). 2. On the top center above the keyboard is the pivot connecting the display panel to the bottom case. There is a sign. 3. Follow the sign to turn the screen clockwise up to 180 degree so that the screen is facing out. 4. Lay the turned screen down into the flat position. The keyboard will be covered by the display. Use the stylus or simply touch the screen to operate U2142 as a Tablet PC. 5. When done with Tablet PC. Reverse the screen to 90 degree, turn counter-clockwise set U2142 back to original position. Attention : Please note that the screen can only rotate at 180 degree Clockwise. Be sure to turn the screen according to the sign. Forcing the screen to turn at the wrong angle will cause serious damage to the U2142. English Recovery Guide English System Recovery (Restore your laptop operating system) When something is going wrong with the laptop operating system, the storage of the laptop has a hidden partition containing a full back up image of the operating system that can be used to restore the system to factory default settings Note . If the storage has been switched or the par tition deleted, the recover y option will no longer be available and a recovery service will be needed. . The recovery function is only available on devices with O/S preinstalled. Devices with DOS do not have the recovery function. Launch System Recovery The system recovery feature is preinstalled before the laptop is shipped from the factory. The option menu allows you to launch the Windows recovery tool to reinstall the operating system to factory default. The brief introduction below will show you how to start the recovery tool and restore your system. All ready to go Make sure your PC is plugged in. This will take a few minutes. Windows 8 Recovery Guide 1 Turn off and restart the laptop. 2 During the laptop turn on process, press and hold F9 key to launch the tool. 3 Choose your keyboard layout. You can press “See more keyboard layouts” to see next page of languages. 4Choose “Troubleshoot” to enter the recovery settings. (Also you can choose “Continue” to exit recovery system and continue to Windows 8 for files or data backup.) 4Choose “Troubleshoot” to enter the recovery settings. (Also you can choose “Continue” to exit recovery system and continue to Windows 8 for files or data backup.) There are two options for system recovery . Refresh your PC You can refresh your laptop to improve the system stability without losing your files. . Reset your PC If you want to remove all of your files, you can reset your PC completely. Caution: All personal data and files will be lost. -Choose “Refresh your PC” [Click on “Next”] > [Choose a target operating system.] > [Click on “Windows 8”.] > [Click on “Refresh” to execute recovery function.] 5 Here are what will happen . Your files and personalization settings won’t be changed. . Your PC settings will be restored to factory default settings. . Apps from Windows Store will be kept. . Apps you installed from discs or websites will be removed. . A list of removed apps will be saved on your desktop. -- ---Choose “Reset your PC” [Click on “Next”] > [Choose a target operating system.] > [Click on “Windows 8”.] > [Choose an option to recover your system] .Just remove my files Only personal data and files will be removed, but computer settings will be kept. .Fully clean the drive The drive will be completely restored to factory default settings. It takes more time. > [Click on “Reset” to execute recovery function.] Here are what will happen . All of your personal files and apps will be removed. . Your PC settings will be restored to factory default settings. English Remark Remark English Advanced options System Restore Use a restore point recorded on your PC to restore Windows. System Image Recovery Recover Windows using a specific system image file. Automatic Repair Fix problems that keep Windows from loading. Command Prompt Use the Command Prompt for advanced trobleshooting. UEFI Firmware Settings Cha...