[SOLVED] Western Digital Caviar Green 3 TB 3.5 (WD30EZRX ) showing 1.4 TB space only.

Solution
I am sorry, I don't get it, would you please explain it to me in steps?
Thank you
From your commandline image, some system operation is using that drive. Preventing the clean command.

You need to discover what it is, and turn that off.
Then do the clean again.

USAFRet

Titan
Moderator
Assuming there is no data on it, try commandline diskpart and the clean command.
If there IS data on it, move that to elsewhere and then try it.

Be absolutely sure of which drive you are accessing. Clean is a one way street.

Or, maybe the seller got a malfunctioning drive, which you now have.