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Is Lenovo Z560 (59-048876) 32-bit or 64-bit?

I could only find that it has Win7 Home Premium.

Processor: Intel Core i5 460M
Speed: 2.53 GHZ
HDD: 500 GB
Screen: 15.6"

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Seems to be 64-bit Intel® Core™ i5-480M Processor ( 2.66GHz 1066MHz 3MB ) – Aki Feb 17 '11 at 17:48
It's getting less and less common for suppliers to install a 32-bit version of Windows these days. Practically every mainstream processor is 64-bit and there are little to no real world applications that are not 64-bit compatible, and if you do have a problem then it's easy to virtualize a 32-bit guest. The only time that people tend to have a problem with 64-bit Windows is when they have old hardware. Chances are it would be a 64-bit OS installed. – Mokubai Feb 17 '11 at 18:13
up vote 2 down vote accepted

The Core i5m 460 is a 64-bit processor

Instruction Set: 64-bit

And comes with a 64-bit OS

Operating system: Genuine Windows 7 Home Premium 64

So yes, it's a full 64-bit system

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