I've had a internal Hitachi hard drive running on windows vista 64bit for a few year now. Recently after getting a really bad virus I had to take it to someone to fix it. So I removed the hard before taking to the store. When I got my computer back I hooked the hard drive back into the case. Now here is the problem. I have about 300 gb of data on the drive, the computer sees the drive and it has the same letter assigned to it but when I click open the drive it says that the file is empty. I've run antivirus on it with no problems, I've unplugged and replugged it and I've switched the wires around. Please help.