## Forcing Windows XP multicore detection

Recently I had to resume a Windows XP Virtualbox VM, to do some tests. I have added some RAM and CPUs (from 1 to 2) to the VM, but the added CPUs aren’t detected.   After some internet surfing, I found the solution. To force the detection, open the Command Prompt and type the following line: rundll32 syssetup,SetupInfObjectInstallAction ACPIAPIC_MP_HAL 128 %windir%\inf\hal.inf After a couple (in … Continue reading Forcing Windows XP multicore detection »