How to remove bans for the System c# group?

Question

C++ / C#

Good afternoon, how to remove system restrictions?

String path = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
            String filePath = Path.Combine(path, "temp3");
           
            DirectorySecurity sec = Directory.GetAccessControl(filePath);

            SecurityIdentifier everyone = new SecurityIdentifier(WellKnownSidType.BuiltinDomainSid, null);
            string permissionShort = string.Empty;
            
            foreach (FileSystemAccessRule rule in  sec.GetAccessRules(true, true, typeof(NTAccount)))
            {
                if (rule.AccessControlType == AccessControlType.Deny)
                    permissionShort += ((rule.FileSystemRights & FileSystemRights.WriteData) == FileSystemRights.WriteData) ? "NotAccess" : "Access";
           if ( permissionShort== "NotAccess")
           {
           sec.RemoveAccessRule(new FileSystemAccessRule(everyone, FileSystemRights.WriteData, AccessControlType.Deny));

           }
                Console.WriteLine(permissionShort);
                Console.ReadLine();

            }

I am writing a code in which I need to make sure that if there is a ban, it will be deleted.


SecurityIdentifier everyone = new SecurityIdentifier(WellKnownSidType.BuiltinDomainSid, Tried the options here but which one is responsible for the system group?

Tried that also no change
System.Security.Principal.NTAccount group = new System.Security.Principal.NTAccount("SYSTEM");
sec.RemoveAccessRule(new FileSystemAccessRule(group, FileSystemRights.WriteData, AccessControlType.Deny));