Virtualbox does not boot

[superloupiot]

Hello,

I have a PC with several hard drive.
Win7-64 bit ultimate is installed on one hard drive and Win8-64bit professionnal is installed on another hard drive.

I've installed the latest version of Virtualbox on Win8.
I've created a virtual machine and installed Linux Mint-Mate 13 in it.

When the virtual machine boot, it display the selection screen installed by Mint13.
As soon as I select Linux Mint, VB display a black box with a white cursor in it ("-") and than freeze in that state.
I've tried to install Mint 14 and Ubuntu and get the same problem.

Strangely, sometime, randomly and very seldomly, it works (Linux start and I can use it).

I'don't experience the same problem with Win7 on the same machine. Under Win7, it always works perfectly.

I annex to this message the log file I get under Win8 host.

What is going wrong with Win8 and VB?

Thanks.

[noteirak]

Nothing shows up in the log.
Could you attach as zip your .vbox file, located in the VM folder?

Also, do you have Hyper-V installed and/or enbaled?

[superloupiot]

I have attached the request file.

Hyper-V is not enable.
I presume it is not installed, as it is not listed in the installed software and it is not enabled in the Windows functionalities.

I also add a print screen of the information generated when Mint13 during the boot process in recovery mode.
VB freeze always at the same point in the boot process.

[noteirak]

Try to disable the USB setting, if that's where it's stuck

[superloupiot]

I've tried to disable the USB settings but it still freeze at the same point.