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How to enable multiple processors on XP SP 3?

Fresh5 days ago
Mar 15, 202651045 views
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Problem

I've got a Lenovo n100 laptop that's 3 years old. It dual boots the original Windows XP that came with it and Ubuntu, and I just now noticed that the XP installation, on the Task Manager, only shows 1 CPU. The device manager does show 2 processors (it's a core duo T2300), but it looks like one of t…

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Fix for: How to enable multiple processors on XP SP 3?

Low Risk

This has worked for us (from: http://www.pcreview.co.uk/forums/change-hal-out-reinstall-t2562052.html ): Disable driver signing (My Computer > Properties > Hardware...) Run this command line exactly:

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