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The terms "32-bit" and "64-bit" refer to the way a computer's processor handles
information. The 32-bit versions of the Windows operating system can use up to 3
GB of memory while the 64-bit versions of Windows can use more memory (up to 128
GB of RAM). More memory helps increase overall system and application performance,
especially with applications optimized for 64-bit. For more details about 32-bit
and 64-bit, see the Windows Help and How-to FAQ.
To find out what version of Windows 7 is installed on your computer:
If you're running Windows 7 or Windows Vista:
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Click Start
,
click Computer, and click System properties.
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Under System, view the System type - It will say either "32-bit Operating System" or "64-bit Operating System".
If you're running Windows XP:
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Click Start, click Control Panel, and then double-click
System.
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On the General tab, view the System type.
