Can't use virtualbox on Windows 8.1

[بنسلين]

Hello folks,
I just realized I needed VirtualBox to test some things out with Linux so I downloaded it and installed it.
Anything went fine untill I started the VirtualMachine.
The weirdest thing happened to me...
There just came another window like the normal Virtualbox one.
Here is a video of it:
http://www.youtube.com/watch?v=4HS59g4WfeQ
The error message is:

Het is niet gelukt een sessie te openen voor virtuele machine u.

The virtual machine 'u' has terminated unexpectedly during startup with exit code 0.

Resultaatcode:E_FAIL (0x80004005)
Component:Machine
Interface:IMachine {480cf695-2d8d-4256-9c7c-cce4184fa048}

When I open it with admin rights it just does the same thing.
I am using VirtualBox 4.3.4 for Windows hosts x86/amd64.
I am using windows 8.1 64 bits.


I hope anyone can help me out with this.

Thanks in advance,

بنسلين

[noteirak]

Minimum information needed for assistance.

[بنسلين]

Minimum information needed for assistance.

Done.

[noteirak]

There is no VM log file : is it because there wasn't any, or you didn't provide it?