Below is a list of system error codes from Code 8500 to Code 8599, along with a description of what the error code means.
Looking for system error codes outside of this range? See my Complete List of System Error Codes for error code details from Code 1 to Code 15299.
Error Code 8500
System error code 8500 means "The search flags for the attribute are invalid. The ANR bit is valid only on attributes of Unicode or Teletex strings." This error code may also display as "ERROR_DS_INVALID_SEARCH_FLAG" or as the value 0x2134.Error Code 8501
System error code 8501 means "Tree deletions starting at an object which has an NC head as a descendant are not allowed." This error code may also display as "ERROR_DS_NO_TREE_DELETE_ABOVE_NC" or as the value 0x2135.Error Code 8502
System error code 8502 means "The directory service failed to lock a tree in preparation for a tree deletion because the tree was in use." This error code may also display as "ERROR_DS_COULDNT_LOCK_TREE_FOR_DELETE" or as the value 0x2136.Error Code 8503
System error code 8503 means "The directory service failed to identify the list of objects to delete while attempting a tree deletion." This error code may also display as "ERROR_DS_COULDNT_IDENTIFY_OBJECTS_FOR_TREE_DELETE" or as the value 0x2137.Error Code 8504
System error code 8504 means "Security Accounts Manager initialization failed because of the following error: %1. Error Status: 0x%2. Click OK to shut down the system and reboot into Directory Services Restore Mode. Check the event log for detailed information." This error code may also display as "ERROR_DS_SAM_INIT_FAILURE" or as the value 0x2138.Error Code 8505
System error code 8505 means "Only an administrator can modify the membership list of an administrative group." This error code may also display as "ERROR_DS_SENSITIVE_GROUP_VIOLATION" or as the value 0x2139.Error Code 8506
System error code 8506 means "Cannot change the primary group ID of a domain controller account." This error code may also display as "ERROR_DS_CANT_MOD_PRIMARYGROUPID" or as the value 0x213A.Error Code 8507
System error code 8507 means "An attempt is made to modify the base schema." This error code may also display as "ERROR_DS_ILLEGAL_BASE_SCHEMA_MOD" or as the value 0x213B.Error Code 8508
System error code 8508 means "Adding a new mandatory attribute to an existing class deleting a mandatory attribute from an existing class or adding an optional attribute to the special class Top that is not a backlink attribute (directly or through inheritance for example by adding or deleting an auxiliary class) is not allowed." This error code may also display as "ERROR_DS_NONSAFE_SCHEMA_CHANGE" or as the value 0x213C.Error Code 8509
System error code 8509 means "Schema update is not allowed on this DC because the DC is not the schema FSMO Role Owner." This error code may also display as "ERROR_DS_SCHEMA_UPDATE_DISALLOWED" or as the value 0x213D.
