Hi everybody,

I have a Western Digital 4TB hdd, but my PC (Bios of PC and Windows 10 as OS) distinguishes it as 3TB.

How I can retrieve full capacity of the harddisk?

I appreciate any help or clue in advance.

The Information shown in "Device Properties" is as following:

Device IDE\DiskWDC_WD40EZRZ-00WN9B0____________________80.00A80\5&1726dd96&1&0.0.0 was configured.

Driver Name: disk.inf
Class Guid: {4d36e967-e325-11ce-bfc1-08002be10318}
Driver Date: 06/21/2006
Driver Version: 10.0.18362.1
Driver Provider: Microsoft
Driver Section: disk_install.NT
Driver Rank: 0xFF0004
Matching Device Id: GenDisk
Outranked Drivers: disk.inf:GenDisk:00FF2000
Device Updated: false
Parent Device: PCIIDE\IDEChannel\4&227b4d2c&0&0

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A backup a day keeps DR away.

Thank you for your prompt reply. The title of this thread shows similarities between the discussion and my problem.

again thank you very much.