C # how to determine whether the system is 64-bit or 32-bit

There are many ways to determine whether the system is 64-bit.

For C #, WMI is a simple method. We can use the addresswidth attribute in the win32_processor class to indicate the system bit width. The addresswidth value is affected by the CPU and operating system.

The specific values are shown in the following table:

	32bit OS	64bit OS
32bit CPU	Addresswidth = 32	N/
64-bit CPU	Addresswidth = 32	Addresswidth = 64

You can use the following C #CodeObtains the addresswidth value.
(Note that you need to add reference system. Management)

 Public     Static    String  Distinguish64or32system ()
{
  Try  
{
  String  Addresswidth  =  String. empty;
Connectionoptions mconnoption  =     New  Connectionoptions ();
Managementscope MMS  =     New Managementscope (  "  \\\\ Localhost  "  , Mconnoption );
Objectquery mquery  =     New  Objectquery (  "  Select addresswidth from win32_processor  "  );
Managementobjectsearcher msearcher  =    New  Managementobjectsearcher (MMS, mquery );
Managementobjectcollection mobjectcollection  =  Msearcher. Get ();
  Foreach  (Managementobject mobject  In  Mobjectcollection)
{
Addresswidth  =  Mobject [  "  Addresswidth  " ]. Tostring ();
}
  Return  Addresswidth;
}
  Catch  (Exception ex)
{
Console. writeline (ex. tostring ());
  Return  String. empty;
}
} 

WMI (Windows Management Instrumentation) is used in many ways.Article.