|If your comp is 64-bit capable, it will require double the memory/ram to run 64-bit Windows.|
32-bit and 64-bit Windows: frequently asked questions
How do I tell if my computer can run a 64-bit version of Windows?
To run a 64-bit version of Windows, your computer must have a 64-bit-capable processor. To find out if your processor is 64-bit-capable, do the following:
Open Performance Information and Tools by clicking the Start button The Start button
, and then clicking Control Panel. In the search box, type Performance Information and Tools, and then, in the list of results, click Performance Information and Tools.
Click View and print detailed performance and system information.
In the System section, you can see what type of operating system you're currently running under System type, and whether or not you can run a 64-bit version of Windows under 64-bit capable. (If your computer is already running a 64-bit version of Windows, you won't see the 64-bit capable listing.)
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