Server running on 64-bit or 32-bit?

Microsoft Windows Server 2003

Method 1
1. Click Start, click Run, type sysdm.cpl, and then click OK.
2. Click the General tab. The operating system appears as follows:
• For a 64-bit version operating system: Microsoft Windows Server 2003 Enterprise x64 Edition appears under System.
• For a 32-bit version operating system: Microsoft Windows Server 2003 Enterprise Edition appears under System.

Method 2
1. Click Start, click Run, type winmsd.exe, and then click OK.
2. In the details pane, locate Processor under Item. Note the value.
• If the value that corresponds to Processor starts with x86, the computer is running a 32-bit version of the Windows operating system.
• If the value that corresponds to Processor starts with EM64T or ia64, the computer is running a 64-bit version of the Windows operating system.

Note: - Intel Itanium-based computers can only run 64-bit versions of Windows. Intel Itanium-based computers cannot run a 32-bit Windows operating system. Currently, 64-bit versions of Windows only run on Itanium-based computers and AMD64-based computers.