1 Open the control panel 2 There is a large icon for viewing mode selection in the upper right direction Find the power option below and enter 4 Select the function of selecting the power key on the left option bar 5 When pressing the power button: set to power off 6 Save the changes below and close the interface experiment. If it works, it will succeed. If it still doesn't work, check whether the switch cable is fixed to the motherboard. If it still doesn't work, it may be that there is a problem with the switch
The failure of keyboard keys is caused by the failure of the contacts in the keyboard to work properly. Therefore, the keyboard can be removed, and the contacts under the keys can be coated with an appropriate amount of graphite (or replaced by a 2B pencil) and then reinstalled for use.
The Fn key on the computer keyboard generally forms a shortcut key with f1..... f12 to achieve specific functions. It needs to be used after installing a shortcut key drive.
Computer keyboard is one of the most commonly used computer input devices, and it is also the most frequently used device.In fact, the Fn key of the keyboard occupies a large part. The Fn key can realize many functions, such as controlling the volume, turning on and off the camera, adjusting the screen brightness, etc.If the Fn key fails, it will have a great impact on the computer. What can I do to fix it?The following is a summary of the repair methods for keyboard Fn failure.Take win7 as an example to demonstrate: 1. First of all, the Fn key has nothing to do with the system installed in the notebook. Each notebook manufacturer has its own drive corresponding to the Fn key.When Fn fails, please go to the official website of your respective notebook to download the drive of Fn. The small notebook is Lenovo. Therefore, go to the official website of Lenovo, match it, find the Fn driver of your own notebook model, and download it.Note that the drive for the Fn key of Lenovo notebooks is included in the "Battery Management Software", or "EnergyManagement".2. Then, if the software already exists on the original notebook, uninstall it and reinstall it.If not, install it directly.3. Next, after the installation, make sure that the software starts automatically when it is turned on. Do not disable the software to start automatically when it is turned on, or it will be useless.4. Then, it is not enough to just install the Fn key, but also to ensure that the hardware drivers are installed normally.Take testing the switch of the touchpad as an example, install the driver of the touchpad, and then hit the keyboard "Fn+F6". Finally, the touchpad can be closed normally, and the Fn key will be repaired.
1、 Numeric keypad failure If the numeric keypad on the desktop computer fails, it is very likely that you accidentally pressed the Numlock key, and Leng Feng observed that he had closed the keypad by heart. The identification method can see whether the indicator light on the keyboard is on. Solution: Press Numlock again to use it. If the laptop keyboard fails, because the space of the laptop keyboard is limited, the function of the number keypad is integrated into the letter keys during the design. If the keys on the right of the laptop keyboard can not type all the letters are numbers.At this time, you can press fn+Numlk to switch between letter/number input. Some friends don't know this. When they can't type letters, they think the keyboard is broken.
2、 How to repair the failure of individual keys of notebook keyboard The failure of some keys on the keyboard is generally due to the fault of the circuit board inside the computer keyboard. The circuit board or conductive plastic inside the keyboard is not clean for a long time, and there is too much dust and dirt, so that the circuit cannot be connected, which will lead to the failure of some keys.If this is the reason, we should clean the keyboard, and clean up the dirt, dust and debris inside. 1. First, you snap up the broken key caps (keys on the keyboard); 2. Use your nails to buckle the edges directly and slowly, don't be afraid to damage them; 3. After buttoning it up, check whether the silica gel cap inside (milky white and steamed color) is displaced, and take a small screwdriver to pull it back (dress up). The following describes the specific steps for clearing the key job protection disk: 1. Unscrew the screws to open the keyboard.When opening the keyboard, pay attention to the button side (the side facing us when we use the keyboard) downward and the circuit board upward, so that the conductive plastic on the keys will not fall off.
2. The circuit board is usually a thin layer of plastic film. We use high concentration alcohol cotton (medical alcohol cotton can also be used, the higher the concentration is, the better it will be) to gently scrub away the dust and dirt, especially the part where the button fails. 3. Clean the failed conductive plastic. If the failed conductive plastic is damaged, we can replace the conductive plastic that is absolutely essential for every key that is not commonly used with the damaged part. Because some keys are basically not available with five extra basic lines, making the best use of everything to extend the life of the keyboard. 4. The corners of the keyboard outside the conductive plastic and circuit board can be brushed with a soft bristle brush to remove the return travel. 5. Check whether some welding modules are broken or disconnected. If an electric soldering iron can be used, it can be welded. 6. After the alcohol evaporates, reinstall the keyboard! 3、 Keyboard drive causes keyboard failure If the keyboard driver is incompatible and causes keyboard failure, we need to update the keyboard driver: 1. Find the keyboard driver update driver in Device Manager 1) On the desktop, start - control panel
(2) , Find keyboard options
(3) Switch to the hardware page and click Properties.
(4) Switch to the driver page and click Change Driver.
(5) , Updating
2. After completing all the steps of the Hardware Update Wizard.Restart the computer and modify the registry. Modify the corresponding value of the registry: "Start", "Run", enter "regedit", and open the registry. The specific path is "HKEY_LOCAL_MACHINE SYSTEMControlSet001ControlKeyboard Layouts" The most common causes of keyboard failure are the above. In addition, other keyboard plugs, circuit problems, motherboard and CPU failures may lead to some key failures, but these reasons are uncommon.The above is how to repair the failure of individual keys on the notebook keyboard. I hope the sharing of this article will help you.
