id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
10793	Unable to boot any 64-bit guest OS using Windows 64-bit	marcoc2		"I am unable to boot any guest OS under Windows (64-bit). Everything works fine under Ubuntu. It seems that any virtual hard disk activity just doesn't go through, the machine just stops there. It doesn't crash or freeze, it just proceeds to do nothing. 

I have tried almost every guest OS out there, not a single one works. What does work though, is booting a 32-bit guest OS '''without''' hardware virtualization."	defect	closed	other	VirtualBox 4.1.18	worksforme	64-bit,windows host		all	Windows