I'm experiencing some confusing behavior with my new SATA drive.

Whole scenario:

1st I plugged new (bigger) HDD to a laptop computer to verify it works (ThinkPad x220, bitlocker enabled on mSATA system drive (disk 1), bitlocker was enabled on original disk 0 but I disabled it with no impact - might be the issue around here somewhere?), initialized it, made single NTFS partition.

2nd I moved original and new disks both to another PC for data copying, copied around 300GB of data to the new disk with robocopy.

3rd I plugged new drive back to a laptop, turned it on and it says: 0GB used, no files.

4th I tried chkdsk: Errors found, errors fixed, files are visible and after few more seconds files disappear in some hidden system ".found" folder. Volume appears empty but still says Used: 300GB.

Event log says:

Ntfs> Errors found, need to turn disk offline for a moment, then run chkdsk /spotfix

Ntfs> Filesystem structure was now repaired (several times)

Ntfs> Detected filesystem structure damage...

When debugging I even tried to put some temporary files on the new drive in the laptop right after making fresh new partition (while replaying 1st step), in the other PC I deleted those, put new files in, moved the disk back to the laptop and it showed me those temporary files and used space was also corresponding with those temp files, not the correct ones (then CHKDSK changed it as stated above).

Both computers run Windows 8.1 update x64 (laptop is running Czech version, other PC is in default English).

What staggers me most of all is that this scenario is completely reproducible - already tried this like 3 times.

The original disk is perfectly readable in the other PC and external USB adapter.

The new disk seems perfectly fine - SMART looks perfect, HD Tune erase test with verification returned 0 errors after 6 hours of testing. When the new disk stays in the other PC it survives restarts without single problem, data intact, event log is clean.

I'm seriously running out of ideas

Thanks in advance

Peter

• Moved by Shaon ShanMicrosoft contingent staff, Moderator 5 hours 37 minutes ago

Just make a fresh partition and format it then try to make copy of your data like what you are doing for some temp files.

Hi,

According to your description, it seems like the Disk itself problem, not Windows.

It would be better to contact the manufacture of the Disk for further assistance in case it cause data loose in the future.