Computer keyboard lag?

[LukefonFabre4]

Okay, see if this works. I did this for mine a couple years back. It wouldn't let me press more than 3 keys simultaneously and would make a loud "beep" like you said.

Go to your Control Panel, open Accessibility Options, then make sure StickyKeys, FilterKeys, and ToggleKeys are unchecked.

And that should do it.