Hide Removable disk for windows XP

This may help you
pseudocode+sample
Hiding:
Skip steps 1&2 if you know the drive letter

1. Find removable drives:

foreach (DriveInfo driveInfo in DriveInfo.GetDrives())
          {
              if (driveInfo.DriveType == DriveType.Removable )
              {
                  2. Get drive letter:
                     driveInfo.RootDirectory.FullName
               }
          }

3.Use code from here[^] to delete the drive letter(DeleteVolumeDriveLetter):(replace @"D:\"

in code example

by relevant drive letter string)
Example

[DllImport("kernel32.dll", SetLastError = true)]
static extern bool GetVolumeNameForVolumeMountPoint(string
    lpszVolumeMountPoint, [Out] StringBuilder lpszVolumeName,
    uint cchBufferLength);

[DllImport("kernel32.dll")]
static extern bool DeleteVolumeMountPoint(string lpszVolumeMountPoint);

[DllImport("kernel32.dll")]
static extern bool SetVolumeMountPoint(string lpszVolumeMountPoint,
    string lpszVolumeName);

const int MAX_PATH = 260;

private void RemoveDriveLetter()
{
    StringBuilder volume = new StringBuilder(MAX_PATH);
    if (!GetVolumeNameForVolumeMountPoint(@"D:\", volume, (uint)MAX_PATH))
        Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());

    if (!DeleteVolumeMountPoint(@"D:\"))
        Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());
    
}

Un-hiding:
1: keep the

volume

from step 3 and use it to restore "VolumeName":

private void RestoreVolumeName()
{
if (!SetVolumeMountPoint(@"D:\", volume.ToString()))
        Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());

}

I have no time to explain this in more detail.
Sorry for my English.
Glad to help you.