How to determine Windows Server 2003 is 32-bit version or 64-bit version

There are two methods to determine whether Windows Server 2003 you are running is a 32-bit or a 64-bit version.

Method 1: View System Properties in Control Panel Click Start, and then click Run. Type sysdm.cpl, and then click OK. Click the General tab. The operating system is displayed as follows: For a 64-bit version operating system: Windows Server 2003 Enterprise x64 Edition appears under System. For a 32-bit version operating system: Windows Server 2003 Enterprise Edition appears under System.

Method 2: View System Information window Click Start, and then click Run Type winmsd.exe, and then click OK. When System Summary is selected in the navigation pane, locate Processor under Item in the details pane. Note the value. If the value that corresponds to Processor starts with x86, the computer is running a 32-bit version of Windows. If the value that corresponds to Processor starts with EM64T or ia64, the computer is running a 64-bit version of Windows.

Notes

• Intel Itanium-based computers can run only 64-bit versions of Windows. Intel Itanium-based computers cannot run 32-bit versions of Windows. Currently, 64-bit versions of Windows run only on Itanium-based computers and on AMD64-based computers.