After the manufacturer's driver is uninstalled, Windows will automatically search for a new touchpad driver and install it. After the procedure is completed, your laptop's touchpad should start working.
Note: If the touchpad still doesn't work, a hardware defect might be the problem, and in that case, you should consider taking your laptop to a repair shop.
If you have bought a new laptop and you experience problems with the touchpad, take it back to the store and have it re-examined by the technical staff. They will diagnose the problem, repair the touchpad, or provide you with a replacement (if they fail to repair ir).
If you have purchased your laptop from Samsung, you can contact their technical support on 1-800-726-7864, 24/7, and explain them the situation. They will help you resolve the issue as soon as possible.
If you're not from the United States you can find the correct support hotline on their website.
Run the Hardware and Devices troubleshooter (Windows)
Windows has a troubleshooter which can locate and fix the problem with your touchpad, instead of you. All you need to do is to run it.
To run the Hardware and Devices troubleshooter do the following, go to Start -> Control Panel (or type control panel in the start menu search box) -> type troubleshooting in the search box -> click on Troubleshooting -> Hardware and sound -> run the troubleshooters one by one.
Note: Do not interrupt the troubleshooting process.
If you have purchased your laptop from Toshiba, you can contact their technical support on 800-457-7777 , 24/7, and explain them the situation. They will help you resolve the issue as soon as possible.
If you're not from the United States, you can find the correct support hotline on their website.