Seagate Portable 5TB External Hard Drive HDD, STGX5000400. The Harddisk Sentinel App shows the HDD inside is ST5000LM000-2U8170
On 8/10, I copied folder "A" from my notebook at home to the new HDD.
On 8//11, I copied folder "B" which contains about 300GB files from work PC to the new HDD, when I plugged HDD into my notebook at home, the folder "B" is gone.
On 8/12, I copied the same folder "B" from work PC to the new HDD, but it was still gone when I plugged it into my notebook. First I used chkdsk, it said it need to fix some error. After that, the folder "B" showed up, but I couldn't enter the folder. Then I used Diskgenius to enter the folder, lots of files in that folder were gone. I had to use DiskGenius to deleted the folder because the windows explorer didn't allow me to do so.
On 8/13, I copied the same folder "B" to the HDD, removed HDD from work PC then plugged it back into work PC again. The folder“B" was still there. But it was still gone after plugged into notebook.
The folder "A" is still there.
On 8/10, I copied folder "A" from my notebook at home to the new HDD.
On 8//11, I copied folder "B" which contains about 300GB files from work PC to the new HDD, when I plugged HDD into my notebook at home, the folder "B" is gone.
On 8/12, I copied the same folder "B" from work PC to the new HDD, but it was still gone when I plugged it into my notebook. First I used chkdsk, it said it need to fix some error. After that, the folder "B" showed up, but I couldn't enter the folder. Then I used Diskgenius to enter the folder, lots of files in that folder were gone. I had to use DiskGenius to deleted the folder because the windows explorer didn't allow me to do so.
On 8/13, I copied the same folder "B" to the HDD, removed HDD from work PC then plugged it back into work PC again. The folder“B" was still there. But it was still gone after plugged into notebook.
The folder "A" is still there.