You will need to send CTRL ATL DEL to the remote server
When using Microsoft's Remote Desktop Protocol (RDP), pressing Ctrl+Alt+Del on your local keyboard affects your local machine rather than the remote one. To send the Ctrl+Alt+Del command to the remote computer, use the following methods:
For Windows Clients:
Keyboard Shortcut:
Ctrl+Alt+End: This combination sends the Ctrl+Alt+Del command to the remote desktop. It's the standard method recommended by Microsoft.
For Mac Clients:
Microsoft Remote Desktop Application:
Press Fn+Control+Option(Alt)+Delete. On Mac keyboards, the Delete key functions as Backspace; thus, this combination effectively sends the Ctrl+Alt+Del command to the remote Windows.