Hide mechanisms to remove zone information

Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista, WindowsXP

This policy setting allows you to manage whether users can manually remove the zone information from saved file attachments by clicking the Unblock button in the file's property sheet or by using a check box in the security warning dialog. Removing the zone information allows users to open potentially dangerous file attachments that Windows has blocked users from opening. If you enable this policy setting, Windows hides the check box and Unblock button. If you disable this policy setting, Windows shows the check box and Unblock button. If you do not configure this policy setting, Windows hides the check box and Unblock button.

This policy has no additional user input fields.

• User
  Default risk level for file attachments

  At least Windows XP Professional with SP2
• User
  Do not preserve zone information in file attachments

  At least Windows XP Professional with SP2
• User
  Inclusion list for high risk file types

  At least Windows XP Professional with SP2
• User
  Inclusion list for low file types

  At least Windows XP Professional with SP2
• User
  Inclusion list for moderate risk file types

  At least Windows XP Professional with SP2
• User
  Notify antivirus programs when opening attachments

  At least Windows XP Professional with SP2
• User
  Trust logic for file attachments

  At least Windows XP Professional with SP2