Well the touchpad driver could be erased or a
virus may have damaged it.
You should go to Acers website and then support and download drivers and get
the right touchpad driver.
Install it and see if it works.
Use TAB to navigate for now. or use mouse keys.
This means keep pressing shift really fast and
accessibility option will show up.
Use tab and space bar to navigate to MOUSE TAB
and select Mouse
Keys and hit enter.
Done for now you can use the numpad to operate
Second option is to go out and buy a USB mouse.
Worst case scenario: Touchpad is damaged and needs replacing.
Or simply a cable got disconnected and needs reconnecting by taking the laptop
Get Your Laptop Mouse to Show Up if It Disappears
Using a laptop is as efficient as a desktop computer to
complete tasks, use the Internet and talk with friends on a daily basis.
If your laptop's mouse cursor disappears, there are various
tricks and solutions available to help get your mouse pointer back to resume
your work and current computer tasks within minutes.
And this can be accomplished without the use of software
applications or advanced computer skills.
Press "Ctrl" + "Alt" +
"Delete" and choose "Task Manager" if your mouse pointer
becomes available, pressing the keys simultaneously.
This will allow you to close any open programs that may be
causing issues with your mouse pointer.
Plug in an external mouse to allow the computer to attempt
to find the device, prompting the mouse pointer to appear which may solve the problem or allow you to
temporarily work with a mouse pointer.
Reboot your computer by pressing and holding the laptop's
power button for a few seconds.
This will reset your laptop's current open settings and most
often allow your computer's mouse pointer to reappear.
Upgrade your laptop's video and graphic card drivers (if
available) to ensure the mouse pointer disappearing or flickering is not a
Select "Start" > "Control Panel" >
"Hardware and Sound" > "Device Manager" to view your
current graphic and video settings.
Visit your device manufacturer's official website to
download the most current version of your drivers.