When I connected my WD My Passport 2TB just after unpacking it and opened Properties tab on Windows 7 I saw
Free space 1997451599872 = 1860.27 GiB
Total space 2000364236800 = 1862.98 GiB
So the disk should have 2.71 GiB of preinstalled data on it, but I could only find
257368064 = 245.44 MiB = 0.24 GiB
Where is the missing 2.47 GiB
I made a disk image using Acronis and that too only found ~0.25GiB
Whenever I move a folder from internal HDD to external HDD, the folder modification time changes, is this normal?
Should I reformat my drive?
Also, will it be the same after reformatting and copying disk image from WD website?
Will the hardware encryption system and other device information as in device manager remain the same?
EDIT:
No problem with the WD External HDD.
The problem is with Microsoft Windows OS which reserves some space on any NTFS partition. On further testing I have found that there is no such problem when the drive is used on GNU/Linux OS. However I couldn’t check this on Mac OS.
As soon as the drive is opened in Windows Explorer the space is reserved in some weird way that it is only visible when using DiskViewer (from Microsoft TechNet).
