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VirtualBox - XP guest does not see multiple cores/multiple processors

Fresh5 days ago
Mar 15, 202618388 views
Confidence Score0%
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Problem

Environment: Host OS: Win7 Pro 64bit Guest OS: WinXP 32bit VirtualBox version: 4.1.4r74291 Processor: Intel Core i7 2630QM with virtualization enabled The Problem: I need the guest system to use multiple cores. I have enabled the following options in VirtualBox: IO APIC (motherboard tab) PAE/NX (pr…

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Fix for: VirtualBox - XP guest does not see multiple cores/multiple processors

Low Risk

I had a similar issue, and I stumbled on this: http://www.nforcershq.com/forum/updating-the-hal-for-multiprocessor-support-t70331.html I downloaded the utility from Microsoft and issued these commands: Then I rebooted and now XP can see all 4 cores.…

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