I'm using a Western Digital 2TB external hard drive (WD Elements WDBAAU0020HBK) that I partitioned into three partitions (F: G: H:). (I'm not sure, but I may have originally partitioned this drive using Acronis Disk Director instead of Windows.) The drive is connected to a Compaq Presario desktop running Windows 7 Home Premium 64-bit with 4GB of RAM. I've been using it over the past 2 or 3 years for data storage without any problems... until now. I hope I can correctly remember the sequence of events, so here goes...
The other day, I was copying a large video file from the C: drive onto the G: partition. The file transfer seemed to be taking an unusually long amount of time, so I clicked cancel. I tried again a little while later, but received a "Data Error: Cyclic Redundancy Check" error message.
I decided to run CHKDSK from a command line with the /R and /F options. It detected the file system as being NTFS and listed the correct volume label. It found a certain number of "unreadable" spots, but then seemed to complete its scan with the message "Stage 2 of 5 completed." It never moved on to the other "stages".
I went to the Western Digital site and downloaded their Data Lifeguard Diagnostics software. It detected the drive and its three partitions, but when I ran the Quick Test, it gave me the following message:
"Quick Test on drive 2 did not complete!
Status code = 02 (Interrupted by hard or soft reset), Failure Checkpoint = 106 (Unknown Test)
SMART self-test did not complete on drive 2!"
The external drive and all three partitions show up under Windows Disk Management. The status for each says "healthy" and the correct "used" and "available" partition sizes are listed. The weird thing is, for "File System" it now says RAW... and I'm pretty sure I originally partitioned them as NTFS and CHKDSK identified them as being NTFS.
Now, when I try to access any of the partitions I get the following error message:
"F:\ is not accessible. The request could not be performed because of an I/O device error."
I've tried the drive in another computer, but I am still unable to access any data (and there's lots!)
I know there are programs out there (like Recuva, GetDataBack, RStudio, etc.) that can recover accidentally deleted files, but I didn't accidentally delete the data on this drive. So, it doesn't seem to be the same situation. Besides, I'm a little afraid to use them. (Many data recovery companies say doing so can actually make the problem worse and/or damage the drive itself.)
So... does anyone know what I should do to access the files?
Thanks in advance for your help!! :-)