@@ -43,7 +43,10 @@ A *storage class* in the context of C++ variable declarations is a type specifie
 
 1.  The [mutable](../cpp/mutable-data-members-cpp.md) keyword may be considered a storage class specifier. However, it is only available in the member list of a class definition.  
 
-2.  Starting with Visual C++ 2010, the `auto` keyword is no longer a C++ storage-class specifier, and the `register` keyword is deprecated.  
+2.  **Visual C++ 2010 and later:** The `auto` keyword is no longer a C++ storage-class specifier, and the `register` keyword is deprecated. **Visual Studio 2017 version 15.3 and later:**(available with [/std:c++latest](../build/reference/std-specify-language-standard-version.md)) The `register` keyword is no longer a supported storage class. The keyword is still reserved in the standard for future use. 
+```cpp
+   register int val; // warning C5033: 'register' is no longer a supported storage class
+```
 
 ## In this section:
 
@@ -234,18 +237,12 @@ void DoSomething()
  For more information, see [Thread Local Storage (TLS)](../parallel/thread-local-storage-tls.md).  
 
 ##  <a name="register"></a>  register  
- In C++11, the `register` keyword is deprecated. It specifies that the variable is to be stored in a machine register, if possible. Only function arguments and local variables can be declared with the register storage class.  
-  
-```  
-register int num;  
-```  
-  
- Like automatic variables, register variables persist only until the end of the block in which they are declared.  
-  
- The compiler does not honor user requests for register variables; instead, it makes its own register choices when global optimizations are on. However, all other semantics associated with the `register` keyword are honored by the compiler.  
-  
- If the address-of operator (**&**) is used on an object that is declared with register, the compiler must put the object in memory rather than a register.  
-  
+**Visual Studio 2017 version 15.3 and later:**(available with [/std:c++latest](../build/reference/std-specify-language-standard-version.md)) The `register` keyword is no longer a supported storage class. The keyword is still reserved in the standard for future use. 
+
+```cpp
+   register int val; // warning C5033: 'register' is no longer a supported storage class
+```
+
 ## Example: automatic vs. static initialization  
  A local automatic object or variable is initialized every time the flow of control reaches its definition. A local static object or variable is initialized the first time the flow of control reaches its definition.