STOP REMEMBER PASSWORD PROMPT IN IE8 "FormSuggest PW Ask" When you check the box, you are setting it to YES: "FormSuggest PW Ask"="yes" If you uncheck the box, you are setting the value to NO "FormSuggest PW Ask"="no"

. . . and you will never be prompted to save your password ever.   The main key that holds this value is here:

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main

Just look in the right hand pane for the value "FormSuggest PW Ask" which will be set to either yes or no. If you prefer you can manually change the value right there rather than via Internet Explorer by just double clicking the value and changing it to yes or no yourself.  This value can even be deleted. It will get recreated next time a choice is made in IE or at the prompt.