pctinkerer


On the bottom of the touch pad, if you click on the right bottom of touch pad it will be considered as right click and if you click on the left bottom of touch pad it will be considered as left click.   


You can also connect the usb external mouse to use the right click on left click most effectively on your laptop.   


You can also look at the bottom row of the keyboard.   On the right side of space bar you can see  alt, windows,  a key with notepad lines and mouse pointer , ctrl keys.


If you try to press ( key with notepad with lines and mouse pointer) only once it will be considered as a single right click.   It will be very usefull for you to use right click in a most effective way on your laptop. 


Please disable and enable the touchpad and check..


If you would like to disable the touchpad, please press and hold  fn key on the keyboard and then press f6 or f7 once.    If the touchpad is not getting disabled you can either press f6 alone or f7 alone without holding the fn key.      It is used to enable or disable the touchpad..    

Try fn + f6 or f6 alone  or  fn + f7 or f7 alone on keyboard to disable and enable the touchpad. 

 

Please look at the key f6 and f7 key on keyboard .    You can see the hand symbol with fingers .   That denotes the touchpad function key.   On some models it will be on f6 and some models it will be on f7.    So we need to use the right key depending upon the laptop model .   If fn + f7 is not working then we have to use f7 alone to make it to work.     

On some old laptop models there will be a separate button right  next to touch pad area which is below the space bar.  It is used to turn on and off the touch pad.  On some old models it will be right next to power button.   On all new models, f7 key is used to enable and disable the touch pad. 

If you would like to disable and enable the touchpad, please press and hold  fn key on the keyboard and then press f6 or f7 once.    If the touchpad is not getting disabled you can either press f6 alone or f7 alone without holding the fn key.      It is used to enable or disable the touchpad..    

After disabling and enabling the touchpad check how the right click and left click  are working.. 

If it is still not working 
Go to support.acer.com 
chose your country 
type snid or chose your model 
go to drivers - Install the i/o drivers first and then install the touch pad driver 

Now check whether the right touchpad key is working.. 


If it is still not working..


Kindly follow the details from link 

https://www.drivereasy.com/knowledge/right-click-doesnt-work-on-touchpad-windows-10-solved/