I thought it might be helpful to newbies like myself to detail the process of setting up unattended access, as there are a couple of hooks that tripped me up along the way one being the password required and the fact that the program doesn't show up in the system tray.
Perhaps the forum Admin might put a sticky on this to sit at the top of the group?

1. Install the program and launch it.
2. Click on the selector at the top and choose "Allow Remote Control"
3. Make a note of the computer ID (you'll need it later)
4. Select Encryption ON
5. Tick the Encryption required box (this will generate a very long stream of figures)
6. Click on Save and save it to preferably a pen drive (a text file with the computer name will be created)
7. Select the box "Allow unattended access"
8. Click OK and check that Encryption is ON and Unattended access is ON
9. REBOOT the computer. Cloudberry will load automatically in the start-up process, but you will not see it in the system tray.

On the computer you intend to Access the above set-up

1. Install the program and launch it.
2. Click on the selector at the top and choose "Control Remote Control"
3. Type in the computer number you previously made a note of (no spaces)
4. Put your pen drive into the USB of the computer
5. click on the button with 3 dots next to it
6. click on encryption required
7. Choose read from file (and find the txt file on your pen drive)
8. Press OK and then connect. (This should wake up Cloudberry at the other end and show the connection number and name).
9. You will be asked for a password. The password required is the Windows password that was used to login to the computer you are accessing.
10. All going well...... you will have control of the remote screen.
11. The access to that particular computer will be saved along with the encryption key so you will not have to re-enter it again.