How to Tell 64 Bit

The ability of a computer to handle and process data is somewhat dependent on whether it is a 32- or 64-bit machine. Your ability to download and install some applications and install hardware components will somewhat depend on whether your computer is 32 or 64 bits. It takes a minute or two to find this information.

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It's easy to tell whether your computer is 32 or 64-bit.

Windows 7

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Close all applications on your computer.

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Click your "Start" button in the bottom left corner of your desktop.

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Scroll up and right click "Computer." Scroll down and hit "Properties."

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View the system type information that appears which will indicate whether you are on a 32- or 64-bit machine.

Windows Vista

Step

Close all applications on your computer.

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Click your "Start" button in the bottom left corner of your desktop.

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Scroll up and click "Control Panel." Hit the "System and Maintenance" icon. Click "System."

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View the system type information that appears which will indicate whether you are on a 32 or 64-bit machine.

Windows XP

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Close all applications on your computer.

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Click your "Start" button in the bottom left corner of your desktop. Click "Run" and type "winmsd.exe" and hit the "OK" button.

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Select "System Summary." Find your processor information under the "Item" column. If the processor value starts with "x86" then it is 32-bit. If it starts with "ia64" or "AMD64" then it is a 64-it machine.