Как запретить FormWindowState.Maximized

private void LogonForm_KeyDown(object sender, KeyEventArgs e)
{
        if (
            (e.KeyCode == Keys.RWin && e.KeyCode == Keys.Up) ||
            (e.KeyCode == Keys.LWin && e.KeyCode == Keys.Up))
            return;
}

if (e.KeyData == (Keys.Control | Keys.C))
        MessageBox.Show(null);

private void DashboardForm_Resize(object sender, EventArgs e)
{
        WindowState = WindowState == FormWindowState.Maximized ? FormWindowState.Normal : WindowState;
}

MaximizedBounds = new Rectangle(
Location.X, Location.Y,
Size.Width, Size.Height);

using System.Runtime.InteropServices;
 
//В классе формы
 public static IntPtr hookProc(int code, IntPtr wParam, IntPtr lParam)
        {
            if (code >= 0 && wParam == (IntPtr)WM_KEYDOWN || code >= 0 && wParam == (IntPtr)260)
            {
                int vkCode = Marshal.ReadInt32(lParam); 
                if (vkCode == 91 || vkCode == 92) 
                {
                    vkCode = 0;
                }
            }
            return IntPtr.Zero;
        }
 
        [DllImport("user32.dll")]
        static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProc callback, IntPtr hInstance, uint threadId);
 
        [DllImport("user32.dll")]
        static extern bool UnhookWindowsHookEx(IntPtr hInstance);
 
        [DllImport("kernel32.dll")]
        static extern IntPtr LoadLibrary(string lpFileName);
 
        private delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam);
 
        const int WH_KEYBOARD_LL = 13, WM_KEYDOWN = 0x100;
       
        private LowLevelKeyboardProc _proc = hookProc;
 
        private static IntPtr hhook = IntPtr.Zero;

            IntPtr hInstance = LoadLibrary("User32");
            hhook = SetWindowsHookEx(WH_KEYBOARD_LL, _proc, hInstance, 0);

private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {
            UnhookWindowsHookEx(hhook);
        }