1 – Click the Start orb.
2 – Type Device Manager into the Search box. As soon as you start typing you should see a series of search results pop up. Click on Device Manager.
3 – Find Keyboards in the list of devices and click the arrow to expand it.
4 – Right-click on the internal keyboard and click Disable. If there is no Disable option listed, click Uninstall.
5 – Click File>Exit.
Note: If you had to choose Uninstall instead of Disable in step 4, the keyboard will be automatically detected and re-installed if you ever have the Device Manager scan for new hardware for some reason. If that happens you’ll need to repeat this procedure in order to uninstall it again.
Your laptop’s internal keyboard should now be disabled. Good luck!