The method of turning on the computer touch screen (touchpad) varies depending on the operating system and computer brand. Here are some common methods: 1. Windows system
1. Most laptops are equipped with a specific shortcut key to turn on or off the touchpad using keyboard shortcuts. Usually, this shortcut key is located in a part of the function key row and can be identified by a specific icon. Simply press the "Fn" key and that key simultaneously to activate the computer touchpad. Different brands of laptops may have different shortcut key layouts. For example, Lenovo computers are typically equipped with touchpad switches on Fn keys and function keys (F1-F12), which may be F6 or F8; HP computers may have touchpad switches set on the F5 or F7 keys; The touchpad switch of Dell computers is usually located on the F3 or F9 keys; The touchpad switch of Asus computers is usually located on the F9 key, but the specific position may vary depending on the model.
2. Click the "Start" button through system settings, select "Settings" (gear icon), or use the shortcut key Win+I to open the settings application. In the settings interface, select the "Device" option. Click on the "touchpad" option on the left, which will display the relevant settings of the touchpad. Ensure that the touchpad switch is set to the 'on' state. If the touchpad is disabled, the switch can be switched to the "on" position.
3. Open the "Start" menu through the control panel, search for and select "Control Panel". Click on 'Hardware and Sound', then select 'Mouse' or 'Touchpad'. In the pop-up "Mouse Properties" window, switch to the "touchpad" or similar tab where you can enable or disable the touchpad.
4. Right click on the "Start" button in Device Manager and select "Device Manager", or use the shortcut key Win+X to select "Device Manager". In the Device Manager, locate the "Mouse and Other Pointer Devices" option, expand it, and find your touchpad device. Right click on the touchpad device and select the 'Enable' option. If the touchpad is already enabled, this option will not be displayed. 2、 MacOS system
1. Check the system preferences by clicking on the Apple icon in the upper left corner of the screen and selecting "System Preferences". Enter the "keyboard" or "touchpad" options. In the touchpad options, ensure that the touchpad is enabled. If the touchpad is disabled, it can be reactivated by checking the corresponding option.
2. Reset NVRAM NVRAM (non-volatile random access memory) is a memory area that stores computer startup information. Sometimes, resetting NVRAM can solve some hardware related issues. To reset NVRAM, turn off the computer and then press and hold the Option, Command, P, and R keys to turn it on at the same time. When you hear the second start sound, release these keys. This will reset the NVRAM and may restore normal operation of the touchpad.
3. Although the touchpad of an Apple computer is usually built-in, sometimes connection issues can also cause the touchpad to malfunction. You can try gently tapping the bottom or side of the computer to see if the touchpad connection can be restored. If the problem persists, it may be necessary to contact Apple's after-sales service center for repair. 3、 Other precautions
1. Ensure that the keyboard and touchpad are not physically damaged: If there are obvious signs of damage (such as dents, fractures, etc.) on the keyboard or touchpad, hardware replacement may be necessary to resolve the issue.
2. Check for driver updates: Sometimes, driver issues can also cause the touchpad to malfunction. You can visit the official website of the computer manufacturer to download and install the latest driver updates.
3. Consider system recovery: If none of the above methods can solve the problem, you can consider using the system recovery function to restore the computer to factory settings or a previous point in time (but please note to back up important data).
There are various methods to activate the touch screen on a computer, and users can choose the appropriate method based on their operating system and computer brand. If none of the above methods can solve the problem, it is recommended to contact the customer service or after-sales service center of the computer manufacturer for further inspection and repair.