I connected my old 250 gb WD caviar to my pc via coolmax and all my files including windows XP were still on there, i didnt care for it so i decided to use this drive as extra space. I cut all files from it and pasted them into my trashcan, it took like 30 minutes because i had to skip or allow some files to continue, but when i finished all windows closed and it just vanished. I dont think my PC recognize it anymore. What could have caused this?