Go to Settings – > Devices and select Mouse & Touchpad. Go through the settings and make sure that Enable is checked under the Touchpad section.

Sometimes a simple restart of the laptop/computer can fix minor cursor problems.

Go to Power & Sleep settings and check the length of time the device has set for when to turn off the display.

Go to Device Manager and ensure that all drivers are up-to-date.

Connect an external mouse and see if the cursor works properly.