lol, I could see how that would be incredibly frustrating.
After checking language, look into any of the HP utilities installed on your computer, some of them may have shortcut keys setup. You could try disabling the HP utilities from starting up as well by typing "msconfig" in the run command box
Also, if your keyboard has a "secondary function" button, see if you can turn it on or off
If that fails, maybe try plugging the keyboard into a different USB port
Also, it may have to do with the keyboard actually being damaged, as in, the w key is actually activating another key in the same matrix (maybe one of the f-keys or a media key). Sometimes a good mashing on the keyboard will fix it! (This is your last resort, obviously)