USAFRet :
I've not tried Windows 10 specifically in VirtualBox, but it should work. What specific errors are you seeing?
well, i'm following the step by step guide and there recommendations but it won;t create the os when i select the windows 10 preview copy.
when it starts it says pc/device needs to be repaired
this 64 bit application couldn't load because your pc doesn't have a 64 bit processor.
file: \windows\system32\boot\winload.exe
error code:0xc000035a