Windows 10: 6tb external hard drive reads 1.5tb unallocated in Windows 10? Solved


  1. Posts : 300
    Windows 10 64-bit Home v1709 (OS Build 16299.192)
       30 Aug 2017 #1

    6tb external hard drive reads 1.5tb unallocated in Windows 10?


    Using a new 6tb external hard drive plugged into a USB port for backup. Need to format but it only reads 1.5tb of unallocated space in Windows 10? Is this an Intel RST driver issue? If so, how can I tell if the RST driver need updating?

    Windows 10 64-bit ver 1703 OS Build 15063.540
    AMD 1700 8-core
    Asus Prime X370-Pro MB
      My ComputerSystem Spec

  2.    30 Aug 2017 #2

    Try using diskpart. With the drive connected, open a Command Prompt (Admin) or Powershell (Admin) and run:

    diskpart
    list disk
    select disk # <- replace the # with the actual number assigned to the 6TB external hard drive
    clean <- this will completely erase the drive selected above, make sure it is the new external drive!
    convert gpt
    exit
    exit

    You should then see 6tb unallocated space in Windows that you can partition and format however you like.
      My ComputerSystem Spec


  3. Posts : 300
    Windows 10 64-bit Home v1709 (OS Build 16299.192)
    Thread Starter
       30 Aug 2017 #3

    NavyLCDR said: View Post
    Try using diskpart. With the drive connected, open a Command Prompt (Admin) or Powershell (Admin) and run:

    diskpart
    list disk
    select disk # <- replace the # with the actual number assigned to the 6TB external hard drive
    clean <- this will completely erase the drive selected above, make sure it is the new external drive!
    convert gpt
    exit
    exit

    You should then see 6tb unallocated space in Windows that you can partition and format however you like.
    Thanks. It appears the issue was because I had the new, unformatted drive setup as an external USB drive. I have since connected the drive in my case via SATA & now able to format to NTFS all 6Tb. I'll move it back to USB but I'm guessing it will be okay now that it's formatted.
      My ComputerSystem Spec


 

Related Threads
I accidentally downloaded windows10 OS to my 1TB external hard drive, it formatted my hard drive and deleted all my important data. I have been reading some old thread related to this subject. follow as suggested to used MiniTool to scan the hard...
hello i have 4 hard disk on my pc 3 hhd and one ssd on ahci mode but the Windows 10 says internal hard drive is external why? 136129
I'm trying to help a friend. Here is his problem: .
Raided hard drive unallocated in Drivers and Hardware
Hello ten forums does anyboby here can me how to fix my raided 2 hard drive without losing any data.. i encounter this. when i open my mycomputer i cannot read my hard drive and my raided drive in device manager was this. look at the picture ...
Hi Ever since the anniversary update, for some reason, when I unplug my external hard drive Windows 10 decides to close down, not crash, as it politely tells me it is shutting down. I use the 'eject external usb/hard drive etc' button and wait for...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 00:39.
Find Us