I use a Toshiba Satellite laptop, Windows 10. I am a "hunt and peck" two-fingered 'typist.' While composing e mail (Yahoo but it has also happened with G-Mail) i many times hit a wrong key and the mail disappears. No, I do not know which keys. It seems to happen with some of the upper ones but no I do not know which ones. I read that there is some way to disable keys, that were intended to give shortcuts to disabled persons. but I have not been able to locate that article again and have no idea what keys are doing this terribly frustrating thing to me. I would be forever grateful for any help.