When your mouse pad is not functioning, it's hard to get most anything done on your computer. The fortunate side to all this is that getting a mouse pad to work again on a laptop is not an overly complex procedure. A few troubleshooting techniques will quickly lead you on your way to productivity again.
Examine your mouse pad. Dirt and grime can affect performance and slow down mouse sensitivity, if not shut it down altogether. Make sure the surface of the track pad is clean and that there is nothing that has managed to get beneath it or around any trackball buttons that could affect the pressing and depressing of the component.
Check to see if your mouse pad has been turned off. If the Fn (Function) button at the bottom left of the keyboard is pressed in conjunction with some other key on the keyboard it can result in the disabling of the mouse pad. To enable your mouse pad on a Windows PC go to the Control Menu.
Under the Printers and Other Hardware option, click on Mouse. Then, click on the tab on the top of the pop-up menu that says Device Settings. The touch pad for your computer should come up as a selectable option. Click on it and you will see the option to enable your device, then click OK. If this does not work, proceed to Step 4.
Check the manufacturer of your laptop (for example, Toshiba) and then navigate to their official website. Find an area for Software and Drivers, and move on to that area.
Enter your laptop number (check your documentation/manuals and/or the bottom of the computer) and look through the drivers that are presented as a result of this number input. It could be that your mouse pad simply needs updated drivers. Find the driver that corresponds to your computer and mouse pad (for example, most Acer laptops use a Synaptics touch pad). Then, click on download. Once the drivers have downloaded, double click them to ensure they install, restart your laptop, and your mouse pad should be working again.