The Log Access machine setting should be configured correctly for the setup log. This policy setting specifies to use the security descriptor for the log using the Security Descriptor Definition Language (SDDL) string. If this policy setting is enabled, only those users matching the security descriptor can access the log. If this policy setting is disabled or not configured, then all authenticated users and system services can write/read/clear this log. Fix: (1) GPO: Computer Configuration\Administrative Templates\Windows Components\Event Log Service\Setup\Log Access (2) KEY: HKLM\Software\Policies\Microsoft\Windows\EventLog\Setup\ChannelAccess