disable damaged internal keyboard for HP Pavilion dv5-2045dx



Looking for advice on how to disable a damaged internal keyboard on a HP Pavilion dv5-2045 dx.
I tried to uninstall through the device manager and when rebooted windows reinstalls it. At times the =/+ key enters itself at rapid fire speed, I am using an external hp keyboard, this is happening on a regular basis which is irritating as the devil!! I also attempted to install an improper driver as one article suggested and it would only continue to install the correct one.
Not very techno savvy, so would anyone have a simple solution to this problem?
Feeling blond in TN