Software Deployment

Hello,

We want to use a completion message in a managed install to instruct the user to reboot when the managed install is finished.
This works fine.

However, with this setting, during the entire installation the following pop-up shows in the lower-right corner of the screen.

Is it possible to disable this pop-up, or make it possible for users to dismiss this pop-up?
We only want the user to see a completion message to instruct the users to reboot.

Thank you in advance.