virtual box fails to start on windows sp 3 lite

Asked By 0 points N/A Posted on -

Hi there,

I just reinstalled on my PC Windows XP SP 3 and after the installation of Virtual Box this error appeared and closed the program. I don’t know what is VMX root mode or how can I make this work. Can you experts help me please to fix this error ?

Thank you !

VirtualBox – Error

Failed to start the virtual machine Windows XP SP3 Lite.

VirtualBox can’t operate in VMX root mode. Please disable the KVM Kernel extension, recompile your kernel and reboot



Result Code: NS_ERROR_FAILURE (0X80004005)

Component: Console

Interface: IConsole {6375231a-c17c-464b-92cb-ae9e128d71c3}

Answered By 110 points N/A #180563

virtual box fails to start on windows sp 3 lite



In the case of running two virtualization program at the same time might cause the issue as both programs try to access the “VT-x” and “AMD-V” which should not be happening. These are complicated so if you have any, close them first and then run VirtualBox.

Also, open a Terminal by pressing “Ctrl + Alt + T” and run the following command:
modprobe -r kvm_intel
with root privilege. It will disable the KVM module and make your guest OS run smoothly.

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