Hello ! CCleaner removes files from nVidia and this removes shortcuts from the taskbar as well as (right-click on the desktop) and the nVidia panel as well as GeForce Experience no longer work.
I have yet unchecked the box nVidia but it does not change anything. After a few days, the shortcuts disappear and the panel no longer works from the control panel. I have to reinstall the drivers.
Thanks for your help.