Determine Bit Version Of Windows XP

If you have Windows XP, there are two methods to determine whether you are running a 32-bit version or a 64-bit version. If one method does not work, try the other method.

Method 1: View System Properties in Control Panel

1. Click Start, dan then click Run
2. Type sysdm.cpl, and then click OK
3. Click UGeneral tab. The operating system is displayed as follows:
• For a 64-bit version operating system, Windows XP Professional x 64 Edition Version <year="> appears under System
• o For a 32-bit version operating system, Windows XP Professional Version <Year></Year> appears under System.
Note: <Year></Year> is a placeholder for a year.

Method 2: View the System Information window

1. Click Start, and then click Run
2. Type winmsd.exe, and then click OK.
3. When System Summary is selected in the navigation pane, locate Prosesor 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 IA-64 or AMD64, the computer is running a 64-bit version of Windows.

Sumber:
http://support.microsoft.com/kb/827218#method2

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