Problem with Virtualbox! "unsupported version 14 of data unit 'cpum'" Help me!


Dec 8, 2013
Hello everyone!

A few days ago i've upgraded virtualbox to 4.3.4 version but it hasn't allowed me to open the VM (with Linux). The problem was a little bit boring 'cause virtualbox showed me an error requiring the virtualization in the CPU configuration, but since my BIOS Utility has not the CPU configuration i couldn't enable it. So i downgraded Virtualbox to previous version, but another error came out:

"Unsupported version 14 of data unit 'cpum' (instance #1, pass 0xffffffff)
Exit Code: E_FAIL (0x80004005)
Component: Console
Interface: IConsole IConsole {1968b7d3-e3bf-4ceb-99e0-cb7c913317bb}"

This is my PC configuration:
PC: HP Presario CQ56
CPU: Pentium(R) Dual-Core T4500 2.3 GHz
OS: Windows 7 Home Premium 64 bit

I have no idea of how solve this problem, can you help me? Thank you so much! ;)