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I am using a Dell Latitude 6410 laptop with Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz processor. I am not sure how many core it supports, but I assume it should be minimum of 2. But Windows XP task manager seems to identify only one core. Why is that?

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Which service pack are you using? It might be that you need the latest service pack to support multicore processors... –  Mokubai Aug 18 '10 at 7:56
I use Windows XP SP3 –  Manoj Aug 23 '10 at 3:48

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Windows XP Professional can support up to two processors regardless of the number of cores on the processor, Microsoft Windows XP Home supports one processor. The OS sees a single CPU, it's up to the application to see the cores and then take advantage of multi-threading.

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Does that mean I cannot see the usage of individual cores from task manager? But I thought I have seen it before. Also how to identify the number of cores in the processor? –  Manoj Aug 18 '10 at 5:26
Try Process Lasso, it should show the cores and their current usage: bitsum.com/prolasso.php –  octa Aug 18 '10 at 5:28

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