PC -> VirtualBox

Hi guys,
I decided to switch my main machine to Linux, so I backed it up with Norton Ghost, it was a Windows 7.
Installed Linux, VirtualBox, installed another copy of Windows in VBox, installed Norton Ghost, ran the back up, went smoothly.

Had problems with boot, fixed it, I can choose what Windows I want to boot inside VBox but I get a BSOD with error "0x0000007b", and I can't seem to fix it.

People online talk about hard disk drivers, I deleted disk from system32/drivers, didn't fix it, any idea on what to do next? Can I just remove almost all driveres from W7 or something dirty like that? Or what do you recommend?

I can see all files on the drive, it's called properly seems healthy, it is most likely a driver issue.

Thanks In Advance. :)