cannot modify partition letter of external drive

  • Thread starter Thread starter horst
  • Start date Start date
H

horst

I have an external hard disk to which the OS gave the letter F:
Now I wanted to call it Y:
I used the disc manager to do this and apparently it worked.
But when I go to Windows Explorer I see the same disc twice: once as F
and once as Y and both seem to work.
But when I switch the PC off and on again, I just get F again and no Y.
Can please somebody suggest me how to solve this problem?
Thanks
Horst
 
horst said:
I have an external hard disk to which the OS gave the letter F:
Now I wanted to call it Y:
I used the disc manager to do this and apparently it worked.
But when I go to Windows Explorer I see the same disc twice: once as F and
once as Y and both seem to work.
But when I switch the PC off and on again, I just get F again and no Y.
Can please somebody suggest me how to solve this problem?
Thanks
Horst

Try this:
1. Re-assign letter Y: to your external disk.
2. Click Start/Run/regedit.exe{OK} and navigate to
HKLM\SYSTEM\MountedDevices.
3. Check if the value \DosDevices\Y: is there.
4. Delete the value \DosDevices\F:.
5. Reboot the machine.
 
Try this:
1. Re-assign letter Y: to your external disk.
2. Click Start/Run/regedit.exe{OK} and navigate to
HKLM\SYSTEM\MountedDevices.
3. Check if the value \DosDevices\Y: is there.
4. Delete the value \DosDevices\F:.
5. Reboot the machine.
Thank you, I followed your directions but...nothing changed.
Still getting F: and no Y: (although \DosDevices\F: is not recreated).
Any additional suggestion, please?
Horst
 
horst said:
Thank you, I followed your directions but...nothing changed.
Still getting F: and no Y: (although \DosDevices\F: is not recreated).
Any additional suggestion, please?
Horst

If \DosDevices\F: is no longer present in the registry then you're dealing
with a substituted or networked drive, not a physical drive. Start a Command
Prompt and type the following commands to find out:
subst{Enter}
net use{Enter}
net use F:{Enter}
mountvol(Enter}

Where does drive F: appear and what does it say?
 
I have an external hard disk to which the OS gave the letter F:
Now I wanted to call it Y:
I used the disc manager to do this and apparently it worked.
But when I go to Windows Explorer I see the same disc twice: once as F
and once as Y and both seem to work.
But when I switch the PC off and on again, I just get F again and no
Y. Can please somebody suggest me how to solve this problem?
Thanks
Horst

You may not be able to. I have been told that some external drives are
built to use only certain drive letters, such as D, E, F, G. No other
will work.

--
----------------------------------------------------------------
A L B E R T A Alfred Falk (e-mail address removed)
R E S E A R C H Information Systems Dept (780)450-5185
C O U N C I L 250 Karl Clark Road
Edmonton, Alberta, Canada
http://www.arc.ab.ca/ T6N 1E4
http://outside.arc.ab.ca/staff/falk/
 
If \DosDevices\F: is no longer present in the registry then you're dealing
with a substituted or networked drive, not a physical drive. Start a Command
Prompt and type the following commands to find out:
subst{Enter}
net use{Enter}
net use F:{Enter}
mountvol(Enter}

Where does drive F: appear and what does it say?
Here is what I got (translated from Italian):

Microsoft Windows 2000 [Versione 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
D:\Documents and Settings\engele>subst
D:\Documents and Settings\engele>net use
nothing has been found in the list

D:\Documents and Settings\engele>net use L: [see below]
couldn't find net connection

D:\Documents and Settings\engele>mountvol
Possible values for VolumeName with actual entry points:

\\?\Volume{e7e601d0-b598-11dd-bf1f-806d6172696f}\
C:\

\\?\Volume{e7e601d1-b598-11dd-bf1f-806d6172696f}\
D:\

\\?\Volume{e7e601d2-b598-11dd-bf1f-806d6172696f}\
E:\

\\?\Volume{e7e601d3-b598-11dd-bf1f-806d6172696f}\
F:\

\\?\Volume{e7e601d4-b598-11dd-bf1f-806d6172696f}\
G:\

\\?\Volume{e7e601d5-b598-11dd-bf1f-806d6172696f}\
H:\

\\?\Volume{e7e601d6-b598-11dd-bf1f-806d6172696f}\
I:\

\\?\Volume{e7e601d7-b598-11dd-bf1f-806d6172696f}\
J:\

\\?\Volume{e7e601d8-b598-11dd-bf1f-806d6172696f}\
K:\

\\?\Volume{e7e601d9-b598-11dd-bf1f-806d6172696f}\
Z:\

\\?\Volume{e7e601da-b598-11dd-bf1f-806d6172696f}\
A:\

\\?\Volume{640eb27a-b5cb-11dd-b286-00134605ad74}\
W:\

\\?\Volume{640eb27b-b5cb-11dd-b286-00134605ad74}\
Y:\


Please note that earlier I typed by mistake F: instead of L:
A:...K: are on the internal HD, while W: and Y: are external HD and Z:
is the DVD drive.
Note that both L: and X: are missing in above list.In Explorer I see
both L: and its renamed copy X: (just for this session: after rebooting
X: will disappear)
In Disk Manager I just see L:. Here this partition has no label and no
possibility to format or eliminate it.
May this be a problem of the external HD? (till a week ago I had no
problem with renaming this drive)
Horst
 
horst said:
If \DosDevices\F: is no longer present in the registry then you're
dealing with a substituted or networked drive, not a physical drive.
Start a Command Prompt and type the following commands to find out:
subst{Enter}
net use{Enter}
net use F:{Enter}
mountvol(Enter}

Where does drive F: appear and what does it say?
Here is what I got (translated from Italian):

Microsoft Windows 2000 [Versione 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
D:\Documents and Settings\engele>subst
D:\Documents and Settings\engele>net use
nothing has been found in the list

D:\Documents and Settings\engele>net use L: [see below]
couldn't find net connection

D:\Documents and Settings\engele>mountvol
Possible values for VolumeName with actual entry points:

\\?\Volume{e7e601d0-b598-11dd-bf1f-806d6172696f}\
C:\

\\?\Volume{e7e601d1-b598-11dd-bf1f-806d6172696f}\
D:\

\\?\Volume{e7e601d2-b598-11dd-bf1f-806d6172696f}\
E:\

\\?\Volume{e7e601d3-b598-11dd-bf1f-806d6172696f}\
F:\

\\?\Volume{e7e601d4-b598-11dd-bf1f-806d6172696f}\
G:\

\\?\Volume{e7e601d5-b598-11dd-bf1f-806d6172696f}\
H:\

\\?\Volume{e7e601d6-b598-11dd-bf1f-806d6172696f}\
I:\

\\?\Volume{e7e601d7-b598-11dd-bf1f-806d6172696f}\
J:\

\\?\Volume{e7e601d8-b598-11dd-bf1f-806d6172696f}\
K:\

\\?\Volume{e7e601d9-b598-11dd-bf1f-806d6172696f}\
Z:\

\\?\Volume{e7e601da-b598-11dd-bf1f-806d6172696f}\
A:\

\\?\Volume{640eb27a-b5cb-11dd-b286-00134605ad74}\
W:\

\\?\Volume{640eb27b-b5cb-11dd-b286-00134605ad74}\
Y:\


Please note that earlier I typed by mistake F: instead of L:
A:...K: are on the internal HD, while W: and Y: are external HD and Z:
is the DVD drive.
Note that both L: and X: are missing in above list.In Explorer I see
both L: and its renamed copy X: (just for this session: after rebooting
X: will disappear)
In Disk Manager I just see L:. Here this partition has no label and no
possibility to format or eliminate it.
May this be a problem of the external HD? (till a week ago I had no
problem with renaming this drive)
Horst

I'm getting a little confused with the various drive letters you're dealing
with (F:, L:, X: and Y):. Let's get some clarity by creating a drive letter
report. Paste the lines below into the file c:\DiskParms.vbs:

Dim DType(6)
DType(0) = "Unknown"
DType(1) = "Removable"
DType(2) = "Fixed"
DType(3) = "Network"
DType(4) = "CDROM"
DType(5) = "RAMDisk"

Set oFSO = CreateObject("Scripting.FileSystemObject")
Set drives = oFSO.Drives

LF = Chr(10)

Line = "Drive Type State Label F/S Size Free
Serial"
WScript.Echo Line
WScript.Echo String(Len(Line)+2, "-")
For Each drive In drives
D = drive.DriveType
if D > UBound(DType) then D = 0
Line = drive.Path & " " & DType(D)

If drive.IsReady Then
Line = Append(Line, "ready", 18, False)
If drive.DriveType = 3 Then
Line = Append(Line, Left(drive.ShareName, 13), 29, False)
Else
Line = Append(Line, Left(drive.VolumeName, 13), 29, False)
End If

Line = Append(Line, drive.FileSystem, 44, False)
Line = Append(Line, Int(drive.TotalSize/1000000), 51, True)
Line = Append(Line, Int(drive.FreeSpace/1000000), 59, True)
' Line = Line & "Available=" & Int(drive.AvailableSpace/1000000)
Line = Append(Line, Hex(drive.SerialNumber), 67, False)
Else
Line = Append(Line, "not ready", 18, False)
End If
WScript.Echo Line
Next

Function Append(L, S, n, numerical)
if n < Len(L) + 2 then n = 2 Else n = n - Len(L)
If numerical Then
Append = L & Left(Space(60), n + 6 - Len(S)) & S
Else
Append = L & Left(Space(60), n) & S
End If
End Function

Now open a Command Prompt and type this command:
cscript //nologo c:\diskparms.vbs{Enter}
What do you see?
 
horst said:
On 18.11.2008 15:11, Pegasus (MVP) wrote:
I have an external hard disk to which the OS gave the letter F:
Now I wanted to call it Y:
I used the disc manager to do this and apparently it worked.
But when I go to Windows Explorer I see the same disc twice: once as F
and once as Y and both seem to work.
But when I switch the PC off and on again, I just get F again and no
Y.
Can please somebody suggest me how to solve this problem?
Thanks
Horst
Try this:
1. Re-assign letter Y: to your external disk.
2. Click Start/Run/regedit.exe{OK} and navigate to
HKLM\SYSTEM\MountedDevices.
3. Check if the value \DosDevices\Y: is there.
4. Delete the value \DosDevices\F:.
5. Reboot the machine.
Thank you, I followed your directions but...nothing changed.
Still getting F: and no Y: (although \DosDevices\F: is not recreated).
Any additional suggestion, please?
Horst
If \DosDevices\F: is no longer present in the registry then you're
dealing with a substituted or networked drive, not a physical drive.
Start a Command Prompt and type the following commands to find out:
subst{Enter}
net use{Enter}
net use F:{Enter}
mountvol(Enter}

Where does drive F: appear and what does it say?
Here is what I got (translated from Italian):

Microsoft Windows 2000 [Versione 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
D:\Documents and Settings\engele>subst
D:\Documents and Settings\engele>net use
nothing has been found in the list

D:\Documents and Settings\engele>net use L: [see below]
couldn't find net connection

D:\Documents and Settings\engele>mountvol
Possible values for VolumeName with actual entry points:

\\?\Volume{e7e601d0-b598-11dd-bf1f-806d6172696f}\
C:\

\\?\Volume{e7e601d1-b598-11dd-bf1f-806d6172696f}\
D:\

\\?\Volume{e7e601d2-b598-11dd-bf1f-806d6172696f}\
E:\

\\?\Volume{e7e601d3-b598-11dd-bf1f-806d6172696f}\
F:\

\\?\Volume{e7e601d4-b598-11dd-bf1f-806d6172696f}\
G:\

\\?\Volume{e7e601d5-b598-11dd-bf1f-806d6172696f}\
H:\

\\?\Volume{e7e601d6-b598-11dd-bf1f-806d6172696f}\
I:\

\\?\Volume{e7e601d7-b598-11dd-bf1f-806d6172696f}\
J:\

\\?\Volume{e7e601d8-b598-11dd-bf1f-806d6172696f}\
K:\

\\?\Volume{e7e601d9-b598-11dd-bf1f-806d6172696f}\
Z:\

\\?\Volume{e7e601da-b598-11dd-bf1f-806d6172696f}\
A:\

\\?\Volume{640eb27a-b5cb-11dd-b286-00134605ad74}\
W:\

\\?\Volume{640eb27b-b5cb-11dd-b286-00134605ad74}\
Y:\


Please note that earlier I typed by mistake F: instead of L:
A:...K: are on the internal HD, while W: and Y: are external HD and Z:
is the DVD drive.
Note that both L: and X: are missing in above list.In Explorer I see
both L: and its renamed copy X: (just for this session: after rebooting
X: will disappear)
In Disk Manager I just see L:. Here this partition has no label and no
possibility to format or eliminate it.
May this be a problem of the external HD? (till a week ago I had no
problem with renaming this drive)
Horst

I'm getting a little confused with the various drive letters you're dealing
with (F:, L:, X: and Y):. Let's get some clarity by creating a drive letter
report. Paste the lines below into the file c:\DiskParms.vbs:

Dim DType(6)
DType(0) = "Unknown"
DType(1) = "Removable"
DType(2) = "Fixed"
DType(3) = "Network"
DType(4) = "CDROM"
DType(5) = "RAMDisk"

Set oFSO = CreateObject("Scripting.FileSystemObject")
Set drives = oFSO.Drives

LF = Chr(10)

Line = "Drive Type State Label F/S Size Free
Serial"
WScript.Echo Line
WScript.Echo String(Len(Line)+2, "-")
For Each drive In drives
D = drive.DriveType
if D > UBound(DType) then D = 0
Line = drive.Path & " " & DType(D)

If drive.IsReady Then
Line = Append(Line, "ready", 18, False)
If drive.DriveType = 3 Then
Line = Append(Line, Left(drive.ShareName, 13), 29, False)
Else
Line = Append(Line, Left(drive.VolumeName, 13), 29, False)
End If

Line = Append(Line, drive.FileSystem, 44, False)
Line = Append(Line, Int(drive.TotalSize/1000000), 51, True)
Line = Append(Line, Int(drive.FreeSpace/1000000), 59, True)
' Line = Line & "Available=" & Int(drive.AvailableSpace/1000000)
Line = Append(Line, Hex(drive.SerialNumber), 67, False)
Else
Line = Append(Line, "not ready", 18, False)
End If
WScript.Echo Line
Next

Function Append(L, S, n, numerical)
if n < Len(L) + 2 then n = 2 Else n = n - Len(L)
If numerical Then
Append = L & Left(Space(60), n + 6 - Len(S)) & S
Else
Append = L & Left(Space(60), n) & S
End If
End Function

Now open a Command Prompt and type this command:
cscript //nologo c:\diskparms.vbs{Enter}
What do you see?
Thank you for your efforts.
Here is the output of your program:

Drive Type State Label F/S Size Free Serial
----------------------------------------------------------------------------
A: Removable not ready
C: Fixed ready DOS FAT32 2085 868 41F0F8E5
D: Fixed ready WIN2K NTFS 15751 5710 4C5A7074
E: Fixed ready PROG-WIN FAT32 29349 7652 E80
F: Fixed ready PROG-DOS FAT32 7856 5584 3FD54635
G: Fixed ready GRAF - WWW FAT32 18341 4263 7FCCF90A
H: Fixed ready GRAFICA FAT32 21465 8002 D4D
I: Fixed ready Win-XP NTFS 12888 5780 C4CFB927
J: Fixed ready WIN2K-2x NTFS 13867 13799 505ACDAF
K: Fixed ready Varie NTFS 128396 38890 70D93F85
L: Fixed ready TREKSTOR500 NTFS 500105 134883 487C814E
W: Fixed ready LACIE 320GB NTFS 320070 97379 1889BBF4
Y: Fixed ready HD-EXTRA160 FAT32 159991 64015 17030E42

All I want is to rename L: to X:
Horst
 
horst said:
horst said:
On 18.11.2008 20:32, Pegasus (MVP) wrote:
On 18.11.2008 15:11, Pegasus (MVP) wrote:
I have an external hard disk to which the OS gave the letter F:
Now I wanted to call it Y:
I used the disc manager to do this and apparently it worked.
But when I go to Windows Explorer I see the same disc twice: once as
F and once as Y and both seem to work.
But when I switch the PC off and on again, I just get F again and no
Y.
Can please somebody suggest me how to solve this problem?
Thanks
Horst
Try this:
1. Re-assign letter Y: to your external disk.
2. Click Start/Run/regedit.exe{OK} and navigate to
HKLM\SYSTEM\MountedDevices.
3. Check if the value \DosDevices\Y: is there.
4. Delete the value \DosDevices\F:.
5. Reboot the machine.
Thank you, I followed your directions but...nothing changed.
Still getting F: and no Y: (although \DosDevices\F: is not recreated).
Any additional suggestion, please?
Horst
If \DosDevices\F: is no longer present in the registry then you're
dealing with a substituted or networked drive, not a physical drive.
Start a Command Prompt and type the following commands to find out:
subst{Enter}
net use{Enter}
net use F:{Enter}
mountvol(Enter}

Where does drive F: appear and what does it say?
Here is what I got (translated from Italian):

Microsoft Windows 2000 [Versione 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
D:\Documents and Settings\engele>subst
D:\Documents and Settings\engele>net use
nothing has been found in the list

D:\Documents and Settings\engele>net use L: [see below]
couldn't find net connection

D:\Documents and Settings\engele>mountvol
Possible values for VolumeName with actual entry points:

\\?\Volume{e7e601d0-b598-11dd-bf1f-806d6172696f}\
C:\

\\?\Volume{e7e601d1-b598-11dd-bf1f-806d6172696f}\
D:\

\\?\Volume{e7e601d2-b598-11dd-bf1f-806d6172696f}\
E:\

\\?\Volume{e7e601d3-b598-11dd-bf1f-806d6172696f}\
F:\

\\?\Volume{e7e601d4-b598-11dd-bf1f-806d6172696f}\
G:\

\\?\Volume{e7e601d5-b598-11dd-bf1f-806d6172696f}\
H:\

\\?\Volume{e7e601d6-b598-11dd-bf1f-806d6172696f}\
I:\

\\?\Volume{e7e601d7-b598-11dd-bf1f-806d6172696f}\
J:\

\\?\Volume{e7e601d8-b598-11dd-bf1f-806d6172696f}\
K:\

\\?\Volume{e7e601d9-b598-11dd-bf1f-806d6172696f}\
Z:\

\\?\Volume{e7e601da-b598-11dd-bf1f-806d6172696f}\
A:\

\\?\Volume{640eb27a-b5cb-11dd-b286-00134605ad74}\
W:\

\\?\Volume{640eb27b-b5cb-11dd-b286-00134605ad74}\
Y:\


Please note that earlier I typed by mistake F: instead of L:
A:...K: are on the internal HD, while W: and Y: are external HD and Z:
is the DVD drive.
Note that both L: and X: are missing in above list.In Explorer I see
both L: and its renamed copy X: (just for this session: after rebooting
X: will disappear)
In Disk Manager I just see L:. Here this partition has no label and no
possibility to format or eliminate it.
May this be a problem of the external HD? (till a week ago I had no
problem with renaming this drive)
Horst

I'm getting a little confused with the various drive letters you're
dealing with (F:, L:, X: and Y):. Let's get some clarity by creating a
drive letter report. Paste the lines below into the file
c:\DiskParms.vbs:

Dim DType(6)
DType(0) = "Unknown"
DType(1) = "Removable"
DType(2) = "Fixed"
DType(3) = "Network"
DType(4) = "CDROM"
DType(5) = "RAMDisk"

Set oFSO = CreateObject("Scripting.FileSystemObject")
Set drives = oFSO.Drives

LF = Chr(10)

Line = "Drive Type State Label F/S Size Free
Serial"
WScript.Echo Line
WScript.Echo String(Len(Line)+2, "-")
For Each drive In drives
D = drive.DriveType
if D > UBound(DType) then D = 0
Line = drive.Path & " " & DType(D)

If drive.IsReady Then
Line = Append(Line, "ready", 18, False)
If drive.DriveType = 3 Then
Line = Append(Line, Left(drive.ShareName, 13), 29, False)
Else
Line = Append(Line, Left(drive.VolumeName, 13), 29, False)
End If

Line = Append(Line, drive.FileSystem, 44, False)
Line = Append(Line, Int(drive.TotalSize/1000000), 51, True)
Line = Append(Line, Int(drive.FreeSpace/1000000), 59, True)
' Line = Line & "Available=" & Int(drive.AvailableSpace/1000000)
Line = Append(Line, Hex(drive.SerialNumber), 67, False)
Else
Line = Append(Line, "not ready", 18, False)
End If
WScript.Echo Line
Next

Function Append(L, S, n, numerical)
if n < Len(L) + 2 then n = 2 Else n = n - Len(L)
If numerical Then
Append = L & Left(Space(60), n + 6 - Len(S)) & S
Else
Append = L & Left(Space(60), n) & S
End If
End Function

Now open a Command Prompt and type this command:
cscript //nologo c:\diskparms.vbs{Enter}
What do you see?
Thank you for your efforts.
Here is the output of your program:

Drive Type State Label F/S Size Free Serial
----------------------------------------------------------------------------
A: Removable not ready
C: Fixed ready DOS FAT32 2085 868
41F0F8E5
D: Fixed ready WIN2K NTFS 15751 5710
4C5A7074
E: Fixed ready PROG-WIN FAT32 29349 7652 E80
F: Fixed ready PROG-DOS FAT32 7856 5584
3FD54635
G: Fixed ready GRAF - WWW FAT32 18341 4263
7FCCF90A
H: Fixed ready GRAFICA FAT32 21465 8002 D4D
I: Fixed ready Win-XP NTFS 12888 5780
C4CFB927
J: Fixed ready WIN2K-2x NTFS 13867 13799
505ACDAF
K: Fixed ready Varie NTFS 128396 38890
70D93F85
L: Fixed ready TREKSTOR500 NTFS 500105 134883
487C814E
W: Fixed ready LACIE 320GB NTFS 320070 97379
1889BBF4
Y: Fixed ready HD-EXTRA160 FAT32 159991 64015
17030E42

All I want is to rename L: to X:
Horst

OK, I can now see what drives you have and what type they are. Unfortunately
this has not reduced the degree of my confusion. Here is why:
- In your first post you said that you wanted to use drive letter Y: instead
of drive letter F:.
- You also said that you could see the same partition twice: Once as F: and
once as Y:.
- In your subsequent post you said that you did not mean drive letter F: but
L:.
- In your most recent post you mention that you want to "rename L: to X:".
What's happened to letter Y:?
- The partition list you posted does not show any volume duplication, which
seems to contradict your original statement.

In view of these corrections and apparent contradictions I am unable to shed
any light on your problem. Perhaps Alfred Falk was correct: That you cannot
change the drive letter of some external disks. I suggest you carefully read
the manual that came with your Trekstor500 disk. You should also tell us
what sort of an external disk it is. USB? SCSI? Other?
 
horst said:
On 18.11.2008 20:32, Pegasus (MVP) wrote:
On 18.11.2008 15:11, Pegasus (MVP) wrote:
I have an external hard disk to which the OS gave the letter F:
Now I wanted to call it Y:
I used the disc manager to do this and apparently it worked.
But when I go to Windows Explorer I see the same disc twice: once as
F and once as Y and both seem to work.
But when I switch the PC off and on again, I just get F again and no
Y.
Can please somebody suggest me how to solve this problem?
Thanks
Horst
Try this:
1. Re-assign letter Y: to your external disk.
2. Click Start/Run/regedit.exe{OK} and navigate to
HKLM\SYSTEM\MountedDevices.
3. Check if the value \DosDevices\Y: is there.
4. Delete the value \DosDevices\F:.
5. Reboot the machine.
Thank you, I followed your directions but...nothing changed.
Still getting F: and no Y: (although \DosDevices\F: is not recreated).
Any additional suggestion, please?
Horst
If \DosDevices\F: is no longer present in the registry then you're
dealing with a substituted or networked drive, not a physical drive.
Start a Command Prompt and type the following commands to find out:
subst{Enter}
net use{Enter}
net use F:{Enter}
mountvol(Enter}

Where does drive F: appear and what does it say?
Here is what I got (translated from Italian):

Microsoft Windows 2000 [Versione 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
D:\Documents and Settings\engele>subst
D:\Documents and Settings\engele>net use
nothing has been found in the list

D:\Documents and Settings\engele>net use L: [see below]
couldn't find net connection

D:\Documents and Settings\engele>mountvol
Possible values for VolumeName with actual entry points:

\\?\Volume{e7e601d0-b598-11dd-bf1f-806d6172696f}\
C:\

\\?\Volume{e7e601d1-b598-11dd-bf1f-806d6172696f}\
D:\

\\?\Volume{e7e601d2-b598-11dd-bf1f-806d6172696f}\
E:\

\\?\Volume{e7e601d3-b598-11dd-bf1f-806d6172696f}\
F:\

\\?\Volume{e7e601d4-b598-11dd-bf1f-806d6172696f}\
G:\

\\?\Volume{e7e601d5-b598-11dd-bf1f-806d6172696f}\
H:\

\\?\Volume{e7e601d6-b598-11dd-bf1f-806d6172696f}\
I:\

\\?\Volume{e7e601d7-b598-11dd-bf1f-806d6172696f}\
J:\

\\?\Volume{e7e601d8-b598-11dd-bf1f-806d6172696f}\
K:\

\\?\Volume{e7e601d9-b598-11dd-bf1f-806d6172696f}\
Z:\

\\?\Volume{e7e601da-b598-11dd-bf1f-806d6172696f}\
A:\

\\?\Volume{640eb27a-b5cb-11dd-b286-00134605ad74}\
W:\

\\?\Volume{640eb27b-b5cb-11dd-b286-00134605ad74}\
Y:\


Please note that earlier I typed by mistake F: instead of L:
A:...K: are on the internal HD, while W: and Y: are external HD and Z:
is the DVD drive.
Note that both L: and X: are missing in above list.In Explorer I see
both L: and its renamed copy X: (just for this session: after rebooting
X: will disappear)
In Disk Manager I just see L:. Here this partition has no label and no
possibility to format or eliminate it.
May this be a problem of the external HD? (till a week ago I had no
problem with renaming this drive)
Horst
I'm getting a little confused with the various drive letters you're
dealing with (F:, L:, X: and Y):. Let's get some clarity by creating a
drive letter report. Paste the lines below into the file
c:\DiskParms.vbs:

Dim DType(6)
DType(0) = "Unknown"
DType(1) = "Removable"
DType(2) = "Fixed"
DType(3) = "Network"
DType(4) = "CDROM"
DType(5) = "RAMDisk"

Set oFSO = CreateObject("Scripting.FileSystemObject")
Set drives = oFSO.Drives

LF = Chr(10)

Line = "Drive Type State Label F/S Size Free
Serial"
WScript.Echo Line
WScript.Echo String(Len(Line)+2, "-")
For Each drive In drives
D = drive.DriveType
if D > UBound(DType) then D = 0
Line = drive.Path & " " & DType(D)

If drive.IsReady Then
Line = Append(Line, "ready", 18, False)
If drive.DriveType = 3 Then
Line = Append(Line, Left(drive.ShareName, 13), 29, False)
Else
Line = Append(Line, Left(drive.VolumeName, 13), 29, False)
End If

Line = Append(Line, drive.FileSystem, 44, False)
Line = Append(Line, Int(drive.TotalSize/1000000), 51, True)
Line = Append(Line, Int(drive.FreeSpace/1000000), 59, True)
' Line = Line & "Available=" & Int(drive.AvailableSpace/1000000)
Line = Append(Line, Hex(drive.SerialNumber), 67, False)
Else
Line = Append(Line, "not ready", 18, False)
End If
WScript.Echo Line
Next

Function Append(L, S, n, numerical)
if n < Len(L) + 2 then n = 2 Else n = n - Len(L)
If numerical Then
Append = L & Left(Space(60), n + 6 - Len(S)) & S
Else
Append = L & Left(Space(60), n) & S
End If
End Function

Now open a Command Prompt and type this command:
cscript //nologo c:\diskparms.vbs{Enter}
What do you see?
Thank you for your efforts.
Here is the output of your program:

Drive Type State Label F/S Size Free Serial
----------------------------------------------------------------------------
A: Removable not ready
C: Fixed ready DOS FAT32 2085 868
41F0F8E5
D: Fixed ready WIN2K NTFS 15751 5710
4C5A7074
E: Fixed ready PROG-WIN FAT32 29349 7652 E80
F: Fixed ready PROG-DOS FAT32 7856 5584
3FD54635
G: Fixed ready GRAF - WWW FAT32 18341 4263
7FCCF90A
H: Fixed ready GRAFICA FAT32 21465 8002 D4D
I: Fixed ready Win-XP NTFS 12888 5780
C4CFB927
J: Fixed ready WIN2K-2x NTFS 13867 13799
505ACDAF
K: Fixed ready Varie NTFS 128396 38890
70D93F85
L: Fixed ready TREKSTOR500 NTFS 500105 134883
487C814E
W: Fixed ready LACIE 320GB NTFS 320070 97379
1889BBF4
Y: Fixed ready HD-EXTRA160 FAT32 159991 64015
17030E42

All I want is to rename L: to X:
Horst

OK, I can now see what drives you have and what type they are. Unfortunately
this has not reduced the degree of my confusion. Here is why:
- In your first post you said that you wanted to use drive letter Y: instead
of drive letter F:.
- You also said that you could see the same partition twice: Once as F: and
once as Y:.
- In your subsequent post you said that you did not mean drive letter F: but
L:.
- In your most recent post you mention that you want to "rename L: to X:".
What's happened to letter Y:?
- The partition list you posted does not show any volume duplication, which
seems to contradict your original statement.

In view of these corrections and apparent contradictions I am unable to shed
any light on your problem. Perhaps Alfred Falk was correct: That you cannot
change the drive letter of some external disks. I suggest you carefully read
the manual that came with your Trekstor500 disk. You should also tell us
what sort of an external disk it is. USB? SCSI? Other?
Well, I found the cause of the problem: it is the external HD!
I bought a new HD and I was able to change the letter easily!
Thank you again for your suggestions.
Horst
 
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