uninstall - How to permanently disable a built-in keyboard

I spilled some liquids on my laptop, after which I dismantled it and cleaned it. Everything worked fine, except my keyboard.

I installed an USB keyboard.

When the laptop is getting hot and the laptop fan is getting noisy, some keys of the original built-in keyboard are still working (tab-key and ctrl-key). As a temporary solution I uninstalled the built-in keyboard driver (device manager windows 10 - uninstall 'Standard PS/2 keyboard' - but I didn't rebooted because the driver would be automatically reinstalled).

But the keyboard is still reacting sometimes (tab-key and ctrl-key).

There is already another topic about this: How can I disable my laptop's built-in keyboard in Windows 7? but

• I couldn't find the 'gpedit.msc'


• I don't have an Acer


• disabling the built-in keyboard hasn't worked, the keyboard still reacts when the laptop is getting hot

I have a HP Pavilion g7 using windows 10.