OK heres the deal. i brought this refurbished laptop about six months ago, But when i did i noticed it a said something about validating the microsoft license message at the lower right corner of my screen that just would not go away until it crashed like 2 months later. I took it back to the store owner who then charged me another hundred bucks to reinstall the microsoft software he said it needed to fix the crash. when i picked it up he said he installed windows defender which would keep it from crashing again but unfortunately its happened again. any suggestions or solutions to my problem is greatly appreciated. Im pretty good with computers if this is something i can fix myself.......Thanks.