1
Look at the function keys (F1 - F12) on your keyboard.
If one of them has a symbol that looks like a touchpad, try pressing that key or Fn + that key to test if that enables the touchpad.
2
If not.
A
Right click your Start Button and open Device Manager.
Expand the 'Mice and other Pointing Devices' section.
Please provide a screenshot of that full Device Manager window.
B
Click your Start Button, then just type msinfo and press Enter, please provide a screenshot of the resulting System Information window.