How to remove a drive letter in Windows XP?

To remove an existing drive letter on a drive, on a partition, or on a volume, follow these steps:

1. Log on as Administrator or as a member of the Administrators group.
2. Click Start, click Control Panel, and then click Performance and Maintenance.
3. Click Administrative Tools, double-click Computer Management, and then click Disk Management in the left pane.
4. Right-click the drive, the partition, the logical drive, or the volume that you want to assign a drive letter to, and then click Change Drive Letter and Paths.
5. Click Remove.
6. Click Yes when you are prompted to confirm the removal.

The drive letter is removed from the drive, from the partition, or from the volume that you specified.

Important:

If you receive the following error message when you try to remove an existing drive letter:
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The volume volume_label drive_letter is currently in use.
If you continue, the drive letter will be freed; however, it will still be available for use until you restart your computer.

Warning: Changing the drive letter of a volume could cause programs to no longer run.

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Please note that this error message may appear if there are files that are in use on the drive, the partition, or the volume. These files may be in use by you or by other people on the network. To resolve this issue, use one of the following methods:

• Click No when you receive the error message. Quit all the programs that are using the files on the volume, and then remove the drive letter. To do this, right-click the volume, click Change Drive Letter and Paths, and then click Remove.
• Click Yes to remove the drive letter the next time that you start your computer.