Can't unhide a partition

I usually use CMD admin, but I thought Powershell was more advanced, so I thought maybe that's what you used.
I used your commands in CMD admin and now I have my 1T data partition having 2 drive letters F and K. Should I reboot and see if the K drive letters sticks?

THis is what CMD said:
DISKPART> det par

Partition 3
Type : 07
Hidden: No
Active: No
Offset in Bytes: 88524980224

Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
* Volume 6 F DATA WD 1T NTFS Partition 849 GB Healthy Hidden

DISKPART> assign letter=K

DiskPart successfully assigned the drive letter or mount point.

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You said GPT is better should I convert all my HD's to GPT

Yes, reboot and see what happens to the letter.



same disk with 2 different drive letters!

I rebooted and lost both drive letters F and K. I the next step is to copy disk1.txt to C drive. It won't let me do it. It says - a required privledge is not held by client

I copied the file to C after using this CMD
icacls c:\ /setintegritylevel M

I plan on doing this below.

run cmd command
C:\Windows\System32>DiskPart /s C:\disk1.txt

I assume it will completely wipe the drive, data and all. You left off the partition for the data partition. Should I just set that up in Disk Management or should I modify your script in disk1.txt?

What about switching over to GPT instead of MBR?

How do I know if this computer is UEFI-Ready? Isn't that a Bios setting?

Thanks for your excellent help,

I did that and when i went to diskmanagment I saw the unallocated data space and went ahead and deleted the EX PART partition which was created by accitnet. I made the data partition a Simple volume. I was surprised that when I deleted the EX Part that it also deleted the Recovery partition. SO now I have a boot partition and data partition.

It looks like the drives are not hidden any more. Here's what diskpart said:
Microsoft Windows [Version 10.0.19045.3693]
(c) Microsoft Corporation. All rights reserved.

C:\WINDOWS\system32>diskpart

Microsoft DiskPart version 10.0.19041.3636

Copyright (C) Microsoft Corporation.
On computer: Q9450

DISKPART> sel disk 1

Disk 1 is now the selected disk.

DISKPART> list par

Partition ### Type Size Offset
------------- ---------------- ------- -------
Partition 1 Primary 73 GB 1024 KB
Partition 2 Primary 857 GB 73 GB

DISKPART>

Should I run that Disk1,txt script?

We don't need that skript any more!
Rightclick on the unallocated space and create a new volume. Assign any free letter and the problem is solved!
You just killed the culprit

Pentagon said:

We don't need that skript any more!
Rightclick on the unallocated space and create a new volume. Assign any free letter and the problem is solved!
You just killed the culprit

I just did that, assigned it to E and rebooted. It again lost the drive letter. I did diskpart and it now shows all the partitions hidden on 1T