frustating

i came to face this pro since yest
with the note that

"notepad error (notepad.exe-application error)

the application was unable to start correctly (0x0000017). click to close the application "

now what i do,,
as first i think that pro start after installing the tuneup utilities so i also uninstall that but still the pro persist so i think the pro is not by the tuneup
but also sont able to understand that whats the pro is
also i updated the notepad application to the latest version
thanks in adv