Hi Matteo-3726,
try adding the following key, and then restarting the computer :
reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system /v LocalAccountTokenFilterPolicy /t REG_DWORD /d 1 /f
Please see this article about this reg key:
https://support.microsoft.com/en-us/kb/947232
I hope this answers your question.
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