Actually, you can check right in your system, for the drivers. Just to into "Control Panel" then "Device Manager". Locate and open the "Mice and other pointing devices" section. Some systems have the "touchpad" listed without having to go into "Mice and other pointing devices". Either way, you will then right click on the listing for your device, and then click "Update driver software".
Also, since the key issue is separate from the pointer issue, you may want to also try the following.
1. Uninstall the keyboard driver. (It is in the same area as the other driver, but under the keyboard section. When right clicking, you just choose to uninstall the driver.)
2. Reboot the computer, without having reinstalled the driver.
3. When the computer restarts, it should reinstall the keyboard driver all on it's own.