Policy
Turn off Internet File Association service
This policy setting specifies whether to use the Microsoft Web service for finding an application to open a file with an unhandled file association. When a user opens a file that has an extension that is not associated with any applications on the computer, the user is given the choice to select a local application or use the Web service to find an application. If you enable this policy setting, the link and the dialog for using the Web service to open an unhandled file association are removed. If you disable or do not configure this policy setting, the user is allowed to use the Web service.
6ca80d5aa76f ShellNoUseInternetOpenWith_2 Registry
Copy registry mappings
HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoInternetOpenWith (enabled) = 1
HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoInternetOpenWith (disabled) = 0 Policy notes
This policy setting specifies whether to use the Microsoft Web service for finding an application to open a file with an unhandled file association. When a user opens a file that has an extension that is not associated with any applications on the computer, the user is given the choice to select a local application or use the Web service to find an application. If you enable this policy setting, the link and the dialog for using the Web service to open an unhandled file association are removed. If you disable or do not configure this policy setting, the user is allowed to use the Web service.