C# Assigning Drive letter to hidden volume

Question

I’m trying to make a simple program. Here’s what I need to do in c#.

Drive letters used below are an example these will be selected by user from a drop down box.

-Select a hard drive (C:) This is a drop down.

-Find Fat32 (system) Partition on that drive. I'm assuming get the specific device ID from (C:) Then Search that Device ID for partition with info field (System) or Formatted as (Fat32)

-Assign a letter to that Fat32(system) partition (w:)

-Run CMD “bcdboot C:\Windows /s w: /f UEFI”

-Report output from cmd if it worked or failed

-Unnassign Letter (w:) from the partition.

Here’s what iv done so far I figure I need to get the disk drives device ID but not sure what to do from here.

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///Get list of Drives to a ComboBox
foreach (var Drives in Environment.GetLogicalDrives())
            {
                DriveInfo DriveInf = new DriveInfo(Drives);
                if (DriveInf.IsReady == true)
                {
                    var DriveInfo = DriveInf.Name + "     " + DriveInf.VolumeLabel;
                    DriveSelection_ddbox.Items.Add(DriveInfo);
                }
            }

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///List Device Info In a Text Box

var DriveSelected = DriveSelection_ddbox.SelectedItem.ToString().Substring(0, 3);

DriveInfo driveInfo = new DriveInfo(DriveSelected);

var DriveLetter = DriveSelection_ddbox.SelectedItem.ToString().Substring(0, 1);

ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid=\"" + DriveLetter + ":\"");
disk.Get();

Drive_info.Text = "Drive Letter \r" + DriveSelected + "\r\rDrive Lable \r" + driveInfo.VolumeLabel +"\r\rDrive ID \r" + disk["VolumeSerialNumber"].ToString() + "\r\rDrive Size \r" + driveInfo.TotalSize;

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///Here is where I need to figure out how to find the fat32(system Partition and assign a letter to it.

var AssignedDriveLetter = "w:";

///Select the partition and assign letter (AssignedDriveLetter)

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//run CMD
string strCmdText;
strCmdText= "bcdboot " + DriveSelected + "Windows /s " + AssignedDriveLetter + ": /f UEFI";
System.Diagnostics.Process.Start("CMD.exe",strCmdText);

//Not sure how but get output from the cmd into a text box

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/// CMD completed properly now unmount the letter

//unmount (w:\)