More than 1 processor on Windows XP 32bits guest

Discussions related to using VirtualBox on Windows hosts.
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dalmirnogueira
Posts: 1
Joined: 28. Feb 2024, 22:18

More than 1 processor on Windows XP 32bits guest

Post by dalmirnogueira »

I have a Windows 11 host with VB 7 and I'm trying to install Windows XP 32 bits guest, but I'm unable to select more than 1 CPU. I tried multiple ISO (home, professional, SP1, SP3...) but all of them got stuck on installation. I tried the 64bits version and it worked fine.
I succeeded installing the 32bits version with only 1 CPU, but if I try to change that after the install is complete, I get blue screen of death.
I know that XP have a limitation of only 1 physical CPU, but the CPU count on VB works as core, right? I really can't understand why I can install the 64bits version but out of lucky with the 32bits version.
oso2276
Posts: 21
Joined: 11. Sep 2023, 15:58

Re: More than 1 processor on Windows XP 32bits guest

Post by oso2276 »

Windows XP 32 bits Professional supports up to two physical processors.
Windows XP 32 bits Home Edition supports only one.

Before installing WXP 32 bits, enable I/O APIC and select 2 processors if installing XP Professional
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