The only way you would receive this error is because of the
Prevent access to drives from My Computer group policy.
The solution is to set
User Configuration\Administrative Templates\Windows Components\File Explorer\Prevent access to drives from My Computer to be Enabled and set the option value to Do not restrict drives from within the Local Group Policy Editor.
If you enable this policy, users cannot view the contents of the
selected drives in My Computer and Windows Explorer. Also, they cannot
use the Run dialog box, the Map Network Drive dialog box, or the Dir
command to view the directories on these drives.
The group policy in question is suppose to prevent the contents of the directory from being listed even in a command prompt. In my testing before writing this answer, even when I specifically set the option to Restrict all drives, I was given the contents of the drive on Windows 10 within a non-elevated command prompt.
Prevent access to drives from My Computer
The default values are not the only values that you can use. By
editing the System.adm file, you can add your own custom values. This
is the portion of the System.adm to be modified
So going under the assumption that, somebody modified System.adm itself, and specifically added a custom numerical value of
1536 which is a 26-bit binary value of
00000000000000011000000000 this would explain the error message you are getting on the drives in question.
The default location of the System.adm file for a default domain
The contents of these folders are replicated throughout a domain by
the File Replication service (FRS). Note that the Adm folder and its
contents are not populated until the default domain policy is loaded
for the first time.
Using Group Policy Objects to hide specified drives
The physical location of these templates might be different depending on the version of Windows your DC is using