My computer freeze without giving any warning like loading very slow or what..it just freeze and when i press ctrl alt delete it will not restart itself and i have to manually press my restart button to reboost again.. i had just changed my HDD to recently and this problem arise.It happened very offen like a a period few days but not happen when even i use my computer.It give my a big problem when i am doing my projects..it will not recovery my things it restart when i am using mircosoft words...It is my HDD giving me this problem? 
