How to make my Quantary touch pad work and to install if needed

Have you tried an external mouse to ensure that the pointer works?
Usually these problems are due to either a defective pad driver or a history of a spilled liquid contaminating of the contacts, or a settings issue (i.e. touchpad is turned off). Hve you trued any of these obvious problem areas?

Please provide a few more details such as Win OS version, TouchPad driver version, etc.

I press <alt> F5 and it will turn on/off the mouse pad!!!

Try connecting an external mouse via USB port. If that works you probably need to have the palm rest (top plastic piece that contains the touch-pad and buttons) replaced.

please try to un-install and re-install the driver for the touch-pad. if that doesn't work then you have a bad touch-pad and it needs to be replaced. or you can use a usb optical mouse instead. refer to local service tech for parts

Using only the keyboard navigate to the internet and google 'Touchpad Driver' download whatever comes up. the exact same thing happend to mine. you may have accidently erased it while cleaning up your computer.

It is hard to tell if the touch-pad needs replacing from the information you gave. However, I can tell you that the touch-pad is NOT part of the keyboard.

There are several things the can cause the touch-pad not to work. 1) It may have been turned off in the BIOS. 2) It may have been turned off by the operating system software or 3) You may have installed a usb mouse which in some cases will override the touch-pad. 4) The touch-pad may have a bad connection into the motherboard or into the touch-pad circuits.

I wouldn't go replacing the pad until I had tried all the other possible areas because this requires a complete screw removal from the bottom, removing the display and keyboard. Then removal of the upper case of the laptop. I do this as a last resort.

Sounds like the touch pad may be bad or isn't installed.If you look under hardware and it installed then most likely the touch pad may be bad.

If you've reinstalled the drivers for the touchpad, the issue is likely the hardware- if in warranty, contact Dell tech support- if not, you may need to purchase the palmrest assembly and consult support.dell.com for the install instructions

I’m happy to help further over the phone at https://www.6ya.com/expert/susan_42b401e0b1603d8a

maybe you need to check the touch pad's driver. make sure the touch pad are properly installed on Device Manager. Look at Human Interface Device or Mice and Pointing Device.  If there is no name for the device, you need to try re-install the driver.

Uninstall the driver from the device manager, then reboot. The machine will find the touch pad and reinstall the drive automatically. If this doesn't work, check the touch pad connection, they will sometimes work loose ar get a little dirt/corrosion build up. The connection is under the keyboard. At this point, if it's still not working, then it has failed and will need replaced.