If you still don’t know this information, you can use the auto-detect feature. If you do not know your serial number, you can also choose the category, series, and model of your device. This will then take you to a page with appropriate drivers.
On the driver and manuals page, you will be asked to enter your serial number, SNID or model number. 
First of all, visit the official Acer website, which features all the necessary, and official, drivers and manuals for your device. Method 3: Updating Through the Acer Website Replace the battery again, power the laptop on and see if the touchpad has begun working again. Remove the battery out of your laptop. Make sure that your laptop is switched on and has completely loaded the operating system. On some Acer systems that come with the Gemstone Blue Audio Controls, it is possible to reset it by removing and replacing the battery. If it doesn’t work, move onto the next method. 
Try using your touchpad after using this key combination. If you can’t find the F6 or F7 key, it should show a small illustration of a hand touching a touchpad. 
On most Acer laptops, you can press and hold the Fn key on your keyboard and then press either the F6 or F7 key. On many computer systems, you can turn your touchpad on and off with your keyboard. You will need a USB or Bluetooth mouse in order to make these changes as your touchpad will not be working, or responding reliably. To solve the problem with the software, try the following.
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