If they're all good then some third party software is doing it, as bassfisher6522 has already suggested.[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"AlwaysShowMenus"=dword:00000000
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"AlwaysShowClassicMenu"=-
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"AlwaysShowMenus"=-
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"AlwaysShowClassicMenu"=-
If they're all good then some third party software is doing it, as bassfisher6522 has already suggested.[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"AlwaysShowMenus"=dword:00000000
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"AlwaysShowClassicMenu"=-
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"AlwaysShowMenus"=-
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"AlwaysShowClassicMenu"=-
Short Answer..... No.Ok
Then, you know how to identify or locate this third-party ?