(BTW What version of Access are you using?)
Thank for support and tips: my version is Microsoft Access 2010 14.0.
I have visited the Microsoft support page but I am not be able to understand what cause the problem.
I am trying to execute ProcessMonitor to trace where the error occurs but i find so many messages from Access that is not clear what is wrong.
Here is some errors related to ActiveX but i can't say if they are important or not.
00:28:32,3403586 MSACCESS.EXE 1564 RegOpenKey HKLM\Software\Microsoft\Office\Common\COM Compatibility ACCESS DENIED Desired Access: Read/Write
00:28:32,3403804 MSACCESS.EXE 1564 RegOpenKey HKLM\Software\Microsoft\Internet Explorer\ActiveX Compatibility ACCESS DENIED Desired Access: Read/Write