Windows Security Log Event ID 4787

Operating Systems Windows 2008 R2 and 7
Windows 2012 R2 and 8.1
Windows 2016 and 10
Category
 • Subcategory
Account Management
 • Application Group Management
Type Success
Corresponding events
in Windows 2003
and before
691  
Discussions on Event ID 4787
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4787: A non-member was added to a basic application group

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Apparently this event is supposed to be logged when you add an exclusion to a basic application group but instead Windows logs 4785 with no indication that the member is an excluded member.

I haven't been able to produce this event. Have you? If so, please start a discussion (see above) and post a sample along with any comments you may have! Don't forget to sanitize any private information.

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Examples of 4787

A non-member was added to a basic application group.

Subject:

   Security ID:  %6
   Account Name:  %7
   Account Domain:  %8
   Logon ID:  %9

Member:

   Security ID:  %2
   Account Name:  %1

Group:

   Security ID:  %5
   Account Name:  %3
   Account Domain:  %4

Additional Information:

   Privileges:  %10

A non-member is an account that is explicitly excluded from membership in a basic application group.  Even if the account is specified as a member of the application group, either explicitly or through nested group membership, the account will not be treated as a group member if it is listed as a non-member.

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