Hi @d_wei ,
If you have Win 10 installed it still may be a driver problem.
Here is a link to the [https://ivanrf.com/en/latest-asus-drivers-for-windows-10/|latest Asus Win 10 drivers].
Download and install the'' ATK package'' and ''Smart Gesture'' drivers. Take heed of the '''Note:''' near the top of the page regarding installation of the drivers.
>>>>>>>>>>''Install the ATK package drivers '''first''', before installing the Smart gesture drivers''<<<<<<<<<<
Do not be tempted to install any other drivers from this page at this time. Fix one problem at a time.
''if it ain't broke don't fix it! ''