Part of partition is showing as inaccessible

[takibi]

I've heard of entire partitions doing this, but never just a portion of one. Windows disk manager says the entire partition is healthy and operational, but there is a good 400 GB of space on it that I can't do anything with. I have tried a disk check and repair, but it hasn't fixed the problem. If I had to guess I would say an entire sector of the drive is corrupt, but I want to be certain before taking the data and moving it to another drive.
None of the existing data has been affected. It was an entirely empty part of the drive, but is part of the main partition.

 

[Boogieman_WD]

Hey takibi. Even if the data looks fine, I'd say that it's important that you move any important files which you may have on the drive to another HDD, just to be on the safe side. After that I'd suggest that you try the drive with a different computer or at least a different SATA connection to see if the same thing happens, because this could be due to a faulty cable as well. If the issue still persists, then I'd recommend that you download the manufacturer's diagnostic tool (or a 3rd party diagnostic tool if the manufacturer doesn't offer such software) so that you can test the drive and see if there are any errors or bad sectors.

Hope that helps.
Boogieman_WD

 

[takibi]

thanks boogie, that was going to be my next few steps if no one was able to get me any kind of answer. I was just hesitant to venture into this territory since I have never seen this happen before.

 

[Boogieman_WD]

No worries, you're welcome. Let me know how everything goes - with the cable switching and the test results of the drive.
Good luck.

 

[takibi]

Thanks as a side note, it is a refurbished WD 1 TB drive.