WD Red NAS drive reformat for non-NAS usage

I upgrade my 3TB WD Red NAS to 6TB drives. I want to use the 3TB for regular desktop use. I’ve used Windows disk Manager, WD Desktop and other drive partitioning programs but I cannot get the 3TB back. The drive only for 700GB. What magic do I have to do to get this drive completely reformatted?


Please refer to the following KBA article: How to low level format or write zeros (Erase) to a WD hard drive or SSHD

Thanks. Had to use Acronis WD edition to do the DriveCleanser, but it didn’t work. While this is a 3TB drive, I can only retrieve 746gb. How can I get the full 3tb back?