Did you notice any lost functionality after you uninstalled Tablet PC component? Most vendors provide their own drivers (i.e. Wacom).
In my case there are no side effects. Probably the visual feedback will disapper, but I've disabled it anyway, so I'm fine with this.
I haven't uninstalled it because I think you might lose Ink features and Touch pointer (semi-transparent mouse) as well but I'm not sure.
This does funny things if your taskbar/superbar is on the left side instead of the default bottom. It works only when your taskbar is on the default bottom but still it's a temporary hack sort of thing - you have to do it everytime you login (even from the lock screen) and whenever something causes explorer to refresh.
But I guess that's pretty much it that can be done at this point.
Quote