Hi,
Since Visual C++ 2012 is one of the prerequisites for installing Exchange 2016/2019, also Exchange 2016/2019 includes some components that depend on Visual C++ 2012 at runtime. In other words, Exchange 2019 may require a specific version of Visual C++ 2012 to ensure proper operation of its services. Therefore, Visual C++ 2012 cannot be removed. if it is removed, it may cause Exchange to be broken.