Hi guys/gals, hope this is in the right section. Today i was helping my Dad out. His computer is quite old and doesn't have a dvd burner, so i thought id give him one of my spares. I popped the side of and removed his old drive and replaced it with the new one. All went smooth, or so i thought. (I have done this before and know what im doing...or so i though, once again). I put the computer back together, it turned on fine...but displayed the "emachines" logo then went to a black screen with a white cursor. After around 20 seconds it comes up with the text "Operating system not found". Obviously this is bad, and leads me to think that the Hard drive has been wiped. Does anyone have an explanation as to why this happened? I really can't work out why it has. Also if anyone has a way of getting the data back (unfortunately i guess that's doubtful) id be really grateful. Thanks!