Here we go:
Microsoft Windows [Version 10.0.19041.388]
(c) 2020 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>DiskPart
Microsoft DiskPart version 10.0.19041.1
Copyright (C) Microsoft Corporation.
On computer: COMPUTER
DISKPART> List Vol
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 D DVD-ROM 0 B No Media
Volume 1 Recovery NTFS Partition 400 MB Healthy
Volume 2 C Gateway NTFS Partition 681 GB Healthy Boot
Volume 3 NTFS Partition 826 MB Healthy
Volume 4 Push Button NTFS Partition 15 GB Healthy
Volume 5 ESP FAT32 Partition 300 MB Healthy System
DISKPART> Select Disk 0
Disk 0 is now the selected disk.
DISKPART> Select Part 6
Partition 6 is now the selected partition.
DISKPART> Assign Letter=R
DiskPart successfully assigned the drive letter or mount point.
DISKPART> List Vol
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 D DVD-ROM 0 B No Media
Volume 1 Recovery NTFS Partition 400 MB Healthy
Volume 2 C Gateway NTFS Partition 681 GB Healthy Boot
Volume 3 NTFS Partition 826 MB Healthy
Volume 4 R Push Button NTFS Partition 15 GB Healthy
Volume 5 ESP FAT32 Partition 300 MB Healthy System
DISKPART> List Vol <<< This one should show R for sure
The arguments specified for this command are not valid.
For more information on the command type: HELP LIST VOLUME
DISKPART>
DISKPART> Exit
Leaving DiskPart...
C:\WINDOWS\system32>DIR R:\*.esd /a /
Invalid switch - "".
C:\WINDOWS\system32>DIR R:\*.esd /a /s
Volume in drive R is Push Button Reset
Volume Serial Number is D49F-5C80
File Not Found
C:\WINDOWS\system32>DIR R:\*.wim /a /s
Volume in drive R is Push Button Reset
Volume Serial Number is D49F-5C80
Directory of R:\Recovery\WindowsRE
07/15/2020 05:33 PM 555,507,721 Winre.wim
1 File(s) 555,507,721 bytes
Directory of R:\RecoveryImage
12/22/2012 05:31 AM 13,077,714,302 install.wim
1 File(s) 13,077,714,302 bytes
Total Files Listed:
2 File(s) 13,633,222,023 bytes
0 Dir(s) 3,137,146,880 bytes free
C:\WINDOWS\system32>DiskPart
Microsoft DiskPart version 10.0.19041.1
Copyright (C) Microsoft Corporation.
On computer: COMPUTER
DISKPART> Select Disk 0
Disk 0 is now the selected disk.
DISKPART> Select Part 6
Partition 6 is now the selected partition.
DISKPART> Remove Letter=R
DiskPart successfully removed the drive letter or mount point.
DISKPART> Exit
Leaving DiskPart...
C:\WINDOWS\system32>