[vbox-dev] Win7Beta guest won't install with one CPU? [SOLVED]

walt w41ter at gmail.com
Mon Aug 10 22:35:56 GMT 2009

On 08/10/2009 01:00 PM, walt wrote:
> Hi,
> I finally got the latest Win7 (64-bit build 7100) installed as a
> guest on my linux 64-bit machine, but it wasn't simple.
> The install disc would stop just before the little colored thingys
> are supposed to start flying around the screen. The Windows boot
> manager prints an error number 0xc0000225 and halts.
> Finally, by accident I tried 2 CPU's and everything is installing
> normally now.

Switching to 2 CPU's forces IO APIC to be set, and that's what made
the difference.

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