Product Support

F-Secure Internet Security 2008 - Back to FAQ list

Before Installation

Q7. How do I determine whether my computer is running a 32-bit or a 64-bit version of Windows XP?

There are several ways to determine whether your computer is running a 32-bit or a 64-bit version of Windows XP.

Use My Computer to check System Properties

1. Click Start, then My Computer and finally right-click your mouse and select Properties. The System Properties window is diaplayed:



2. In the System Properties window, click the General tab and note the first line under Computer:
   • On 32-bit systems, a value other than Itanium or Itanium2 appears on the line.
   • On 64-bit systems, Itanium or Itanium 2 appears on the line.

Use the Winmsd.exe tool to check System Type or Processor

1. Click Start, and then click Run.
2. Type winmsd.exe in the Open box, and then click OK.
3. Do then either Step 4 or Step 5.
4. Locate System Type in the right pane under Item. Note the value.
• If the value that corresponds to System Type is X86-based PC, the computer is running a 32-bit version of the Windows operating system.
• If the value that corresponds to System Type is Itanium–based system, the computer is running a 64-bit version of the Windows operating system.
5. Locate Processor in the right pane 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 ia64, the computer is running a 64-bit version of the Windows operating system.

Use the Dxdiag tool to check the version

1. Click Start, and then click Run.
2. Type dxdiag in the Open box, and then click OK.
   Note: If a Windows dialog box is displayed asking if you want to verify your drivers, you can safely click No and continue. DirectX Diagnostic Tool dialog will be displayed. Allow the program to finish loading.
3. Locate Operating System in System Information: If your computer is running a 64-bit version of Windows XP, it will be indicated on the operating system line. An example: Microsoft Windows XP 64-bit Edition.
4. Locate Processor in System Information: If the processor used is either Itanium or Itanium2, your computer is running a 64-bit version of Windows XP.