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"Windows XP Pro", "Windows XP Pro 32-bit" or "Windows XP Pro 64-bit"?
I have a "Dell Latitude D620", with a "Intel Centrino Duo" (2 core CPU, I think). T5600 @ 1.83ghz, 2bg of RAM and 80gb HDD..
It does not have an operating system installed on it..
I believe it was running windows XP pro because it has a sticker of the product key at the bottom.
I'm just confused about the whole standard/32-bit/64-bit OS and single/dual/quad CPU. I know there is some link (eg. 32-bit OS for dual and 64-bit for quad). But it's an assumption.
What is the best operating I should install on it for maximum performance of the CPUs?
The standard "Windows XP Pro", "Windows XP Pro 32-bit" or "Windows XP Pro 64-bit"?
Since I already have a Product Key (I believe it's OEM), it it possible to download the correct OS from Microsoft?
Thank you.