I am creating memeorymapped file :

 var security = new MemoryMappedFileSecurity();
            security.SetAccessRule(new AccessRule<MemoryMappedFileRights>(new SecurityIdentifier(WellKnownSidType.WorldSid, null), MemoryMappedFileRights.FullControl, AccessControlType.Allow));


 MemoryMappedFile memoryMappedFile = MemoryMappedFile.CreateFromFile(
                      new FileStream(path, FileMode.Open, FileAccess.Write, FileShare.ReadWrite),
                      "MMFName",
                      100000000,  
                      MemoryMappedFileAccess.ReadWrite,  
                      security, 
                      HandleInheritability.None, 
                      false 
                      );

Even though after setting security property ,and event after running in admin mode, I still get error “Access to the path is denied”

Tried MemoryMappedFileSecurity and tried running in admin mode.