The trackpad does not work on Windows is mostly caused by driver, setup or system problems. The troubleshooting steps are as follows: 1. Check whether you accidentally touch the touchpad to close the trackpad and try to restore it using the Fn function key; 2. Enter settings to confirm the trackpad status; 3. Uninstall and reinstall the trackpad driver through the Device Manager; 4. Check the running status of the Human Interface Device Access service; 5. Test the external mouse to troubleshoot hardware failures. Troubleshooting in this order can solve most problems.

It is really a headache to suddenly not work on Windows. In fact, in many cases, the problem is not serious, and most of it is caused by driver, setup or system glitches. As long as you follow the steps to check, most situations can be solved.

Check basic settings and shortcut keys

Many people can't use the trackpad, but they just accidentally turned it off. Some notebooks have a function key (such as a Fn key) to turn on/off the trackpad, and some will automatically pop up prompts in the notification center.

• See if there is any prompt for "Touchpad disabled"
• Try pressing Fn 相應(yīng)的功能鍵(usually F6 or F8, see the icon for details)
• Go to Settings > Bluetooth and Other Devices > Mouse and Other Pointer Devices to confirm that the trackpad is online

Sometimes you may touch this switch by mistake, especially after closing the notebook or external mouse.

Reinstall or update the driver

The trackpad depends on the driver to work properly. If the driver is damaged, expired, or conflicted, it may cause the trackpad to fail.

You can do this:

• Press Win X and select Device Manager
• Find mouse and other pointer devices or ergonomic input devices
• Right-click on your trackpad device (such as Synaptics, Elan, etc.) and select "Uninstall Device"
• After uninstalling, restart the computer, the system will automatically reinstall the driver

If you are not sure which trackpad is, you can click on the properties one by one. Generally, the word "Touchpad" will be displayed in the name.

If the automatic installation does not work, you can also download the corresponding driver for manual installation on the official website.

Check system services and registry keys (advanced)

Some system services control the operating status of the hardware. If these services are turned off, the trackpad may also be unavailable.

• Press Win R and enter services.msc to enter
• Find the Human Interface Device Access service
• Make sure its status is "Running" and the startup type is "Auto"

In addition, some users report that a key value in the registry is changed and it will cause the trackpad to fail. If you know a little about registry operations, you can search for keywords:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\drivers.desc
Check if there are any abnormal changes.

However, it is not recommended that novices modify the registry at will unless you are sure what you are doing.

Try external mouse to troubleshoot hardware problems

If none of the above methods work, you can plug in a USB mouse to test it first.

• If the external mouse can be used, it means it is not a system problem. It is likely that the trackpad itself is broken or the connection is loose
• If the external mouse is not working well, it may be a more underlying problem, such as system file corruption

It is recommended to contact after-sales service or professionals to check the hardware at this time.

Basically, these common reasons and solutions are all about them. The trackpad problem is annoying, but it is not a big problem most of the time. Start with the simplest settings and drivers, and check step by step, and you can basically do it.

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