Windows 10: File Explorer show different size for external HDD than does Disk Management

Disk management shows external L drive with 931.32 GB, but when I look at it in File Explorer, it only shows 453 GB.


The disk previously had three partitions Mac, Linux and Windows. I used parted in Linux to delete the two non-NTFS partitions and expand the NTFS partition to the entire HDD.. So Disk Management show this result but I'm not seeing it in File Mgr or when I choose that partition in Acronis.


I thought maybe the old partition data was stuck somewhere in Win memory, but I stopped the computer, removed the external HDD, restarted the computer, plugged the external HDD in, and am getting the same results.


I'm running a fresh upgrade from Win 7 to Win 10, and most everything else seems to be going well.

:)

 

external hard drive showing up in device management but not disk management

Hi,

I recently tried to use a brand new Seagate 2TB External HD, but it is not showing up. It initially showed up, but after I tried reformatting it to exFAT32, it disappeared from the disk management list.

I then tried:

• refreshing the disk management list,
• inserting into a different USB port,
• re-starting my computer, and
• uninstalling the device from device manager/letting it refresh,

I still can't see it. There is no yellow error in the USB controller list.

I'm on Windows 10.

Intel i5-3317U @ 1.7GHz

Any suggestions? Thanks!

 

Installing a new HDD to replace a HDD of the same size that failed.

I have a Windows 10 OS installed on my C: drive. I had data stored on an HDD designated as D: drive. That second drive failed and was replaced by a new HDD. Both are the same size and type of drives, except different manufactures. The new HDD is not
listed in File Explorer. It is listed in Computer Management under Device Manager as a Disk drive. Disk Management under Storage does not list the new HDD.

I have tested the new HDD with software downloaded from the manufacture and it has passed all tests. At least that software was able to access the new drive and perform low level tests to see if it is operational.

Looking at the events log for this HDD, I find an event warning that says "Device ... was not migrated due to partial or ambiguous match." Opening up the properties indicates drivers have been installed. Reading the volume information results in: "Volume
information for this disk cannot be found"

I suspect that the problem with the volume information is associated with the warning in the event log. I removed the HDD, restarted the PC then shut it down to start the installation process over again. No change in the event log or status of the new
HDD. Can anyone suggest how I can get past that warning?

 

HDD not showing in file explorer.

I have just built a new PC with an SSD and an HDD. I put Windows 10 Home on my SSD. My HDD isn't showing in the file explorer, and I checked disk management but it never made me format it or anything. I'm stuck, and I need help.