Actually I agree with what Chad and Rock's answers.
The only thing I have to add to them is that there are unattended options
that can be set when booting to the DVD that can assign drivers as well.
Using Computer Management\Disk Managment to change the drive letters is
only an option for drive letters other than the system and boot drives.
Both System drives and boot drives are not allowed drive letter changes in
In Larry's case, his system drive is D and his boot drive is C
Since Larry cannot change his D drive, because is contains the boot files,
that option is not available in disk managment.
So he want so label his E drive as D, which also isn't an option system
that would first require a change the D which isn't allowed as per the
In disk managment as in other places in Windows Vista, Windows XP, Windows
Server 2003, Windows 2000, and NT Based Windows Versions:
System Drive is defined as the drive that contains the boot files.
Boot Drive is defined as the drive that contains the \Windows folder.
This posting is provided "AS IS" with no warranties, and confers no rights
|>From: Adam Albright <AA@ABC.net>
|>Subject: Re: Vista installation drive letters
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|>NNTP-Posting-Date: Fri, 16 Feb 2007 20:26:20 EST
|>Date: Fri, 16 Feb 2007 19:26:03 -0600
|>On Fri, 16 Feb 2007 19:49:38 -0500, "Chad Harris"
|>>It's as Rock says and you have to do it this way:
|>Geez, do you net nanny's even bother to read what people ask?
|>It seems the primary question is how can I restore the drive letter my
|>data and programs are on. It seems the original poster is quite happy
|>with the OS being installed as is.
|>In Vista, you can use the Disk Management console to manage the drives
|>on your computer. Anything but the letters A & B which are reserved
|>for floppy drives are available. So the options are anything from C
|>through Z. You can skip letters, even use the bottom of the alphabet
|>if that makes you happy.
|>Click Start, then right click on computer, then pick manage and
|>finally click on Disk Management. You will see a list of the drives
|>currently seen by Windows. If you have some external drives turned
|>off, they don't show until they are on and you refresh.
|>To change a drive letter assignment OTHER than your boot drive simply
|>right click on it from here and finally drive letter and path. DO NOT
|>change the drive letter (typically C) unless you really know what
|>you're doing. That too can be done, but not recommended since doing so
|>can really mess you up depending on how your system is setup.
|>Now if you want to get more fancy and you have a dual boot setup and
|>get confused with XP and Vista swapping drive letters depending on
|>which OS is active you CAN defeat that behavior.
|>Read this article: