4Tb drive showing as 2Tb

Ant555

I have a 4Tb desktop HD that is only showing as 2Tb. and am looking for a general direction on how to fix.

The scenario is that I actually have two 4Tb 'data' drives (a WD Green and a WD Red) so I am happy the BIOS and drivers are OK and 4Tb capable as both were working last week.

The 4Tb Red works fine either attached to the motherboard or as an external USB in a 'toaster' device.

The 4Tb Green disappeared from Windows 7 last week and I have lost data but when I tried to reformat it only shows as 2Tb. Have tried both attached to motherboard and also in the toaster but only seen as 2Tb.

Anyone have any tricks/hacks on how I can reformat this disk back to 4Tb?
Thanks

grumpycrab

May be relevant...
https://www.techpowerup.com/forums/threads/windows-7-and-4tb-hard-drive.202749/#post-3195667

Ant555

grumpycrab wrote: »

May be relevant...
https://www.techpowerup.com/forums/threads/windows-7-and-4tb-hard-drive.202749/#post-3195667

If it was a new build then I would be looking at driver and bios versions but has worked for 12 months.

However, the magic of MSE is that after a few days of frustration with this, one hour after posting its suddenly started to be recognised as a 4Tb drive so ive reformatted it fine - no idea why. Just restoring the data.

Thanks.

were

Glad it it working. When initially seeing the post thought it was an MBR issue, and you needed GPT format for over 2T.