To shadow any other session, without a prompt, you would use the RDP-TCP Properties dialog, on the Remote Control tab, and clear the require users permission box.

To remote control the console (session 0) without a prompt for approval:

1. On the Terminal Services server, Start / Run / Gpedit.msc / OK.

2. Navigate through Computer Configuration / Administrative templates / Windows Components / Terminal Services.

3. Right-click Remote Control Settings and press Properties.

4. Select the Enabled option.

5. Select Full Control without user's permission, under Options.

6. Press OK.

7. Exit the Group Policy Editor.

8. To force this local policy to update now, open a CMD prompt, type gpupdate /force, and press Enter.

When you establish a Remote Desktop session, you can connect to the console and remote control it:

1. Open a CMD prompt.

2. Type Shadow 0 and press Enter.

You will NOT be prompted for permission.