I have solved definitively the problem.
In Regedit delete only this two registry keys:
Value "ModernViewStatePersist" in
"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced"
Value "ModernViewStatePersistent" in
"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced"
Dont delete the folder below:
"HKEYCURRENT USER\Software\Microsoft\Windows\CurrentVersion\
Explorer\CLSID\{949ECF34-5756-4b9c-9692-2decAA8b91a2}
Now AmiBroker dont go nevermore to unregistered.
Greetings.
Ciao!