The path for the file C# winform

I have the test.txt file I embed in the prj and then I use FileStream >
I want to put this test.txt file in this path \ Game \ ya \ <the test.txt file it is in,
This path is before the default, it is located on drive C: \ Game \ ya \
but if it is on D: \ Game \ ya \ or E, F, ... or each computer is different

then how could I find the correct path \ Game \ ya \

Is there any way for it to find the path to put the file tes.txt in the path, not using OpenFileDialogs?

private void button2_Click(object sender, EventArgs e)
        {
          
            Stream stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("wf2.test.txt");

            //
            string fullPath1 = @"\Game\ya\test.txt";
            // 

            FileStream fileStream = new FileStream(fullPath1, FileMode.Create);

            for (int i = 0; i < stream.Length; i++)
                fileStream.WriteByte((byte)stream.ReadByte());
            fileStream.Close();

            MessageBox.Show("Install successfully");


        }

<pre> //
            string fullPath1 = @"\Game\ya\test.txt";
 // 

It seems that it is only correct on the Windows drive