Can't format external USB drive.

I am trying to format 2 partitions on an external 1TB USB3 drive. I had 2 ExFat partitions (partitions 6 and 7) which I have deleted and created 2 new ones using diskpart which I want to format NTFS.

When I try to format them using disk management it hangs, explorer crashes and I have to hard power off.

When I try diskpart I get the error "The parameter is incorrect. See the System Event Log for more information.". There is nothing to be seen at all in the system log.

Have I created the partition table incorrectly in some way? It was originally created manually using this utility GPT fdisk | SourceForge.net

The other partitions are working fine.

Code:

DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          113 GB      0 B
* Disk 1    Online          930 GB      0 B        *

DISKPART> list partition

  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    System             300 MB    24 KB
  Partition 2    Primary            119 GB   301 MB
  Partition 3    Primary            119 GB   119 GB
  Partition 4    Primary            118 GB   238 GB
  Partition 5    Unknown            619 MB   357 GB
  Partition 6    Primary            120 GB   358 GB
* Partition 7    Primary            452 GB   478 GB

DISKPART> FORMAT FS=NTFS LABEL="eGo" QUICK

    0 percent completed

DiskPart has encountered an error: The parameter is incorrect.
See the System Event Log for more information.

DISKPART> select partition 6

Partition 6 is now the selected partition.

DISKPART> FORMAT FS=NTFS LABEL="empty" QUICK

    0 percent completed

DiskPart has encountered an error: The parameter is incorrect.
See the System Event Log for more information.

DISKPART>

Code:

C:\Users\adam\Downloads\gdisk-windows-0.8.10>gdisk64.exe 1:
GPT fdisk (gdisk) version 0.8.10

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.

Command (? for help): r

Recovery/transformation command (? for help): o

Disk size is 244011446 sectors (930.8 GiB)
MBR disk identifier: 0x00000000
MBR partitions:

Number  Boot  Start Sector   End Sector   Status      Code
   1                     1    244011445   primary     0xEE

Recovery/transformation command (? for help): p
Disk 1:: 244011446 sectors, 930.8 GiB
Logical sector size: 4096 bytes
Disk identifier (GUID): xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxxx
Partition table holds up to 128 entries
First usable sector is 6, last usable sector is 244011440
Partitions will be aligned on 2-sector boundaries
Total free space is 427 sectors (1.7 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1               6           76805   300.0 MiB   EF00  EFI System Partition
   2           77056        31327055   119.2 GiB   0700  VMS
   3        31327056        62609823   119.3 GiB   0700  FAT
   4        62609824        93733915   118.7 GiB   AF00  Yosemite Recovery
   5        93733916        93892607   619.9 MiB   AB00  Recovery HD
   6        93892608       125349887   120.0 GiB   0700  Basic data partition
   7       125349888       244011263   452.7 GiB   0700  Basic data partition

Recovery/transformation command (? for help): q

C:\Users\adam\Downloads\gdisk-windows-0.8.10>

Attachment 12896

Invalid syntax unfortunately.

PHP Code:

DISKPART> FORMAT FS=NTFS /V=eGo /Q
The arguments specified for this command are not valid.
For more information on the command type: HELP FORMAT 


I've confirmed it isn't the drive as I can format on another 8.1 computer. It isn't the USB hardware as when I boot this PC into OSX it works fine. In windows 10 the newly formatted NTFS partitions I can write to but not delete or copy big files so it isn't just formatting.

It is connecting through UAS which is new for me. I'll have to check the drivers, disabling the controller and so on I guess.

That looks like a W10 bug to me. I would report it.